http://www.rspb.org.uk/advice/helpingbirds/health/babybirds.asp

10 speed chainrings can be slightly narrower than 9 speed.
http://www.highpath.net/highpath/cycles/info/rear.html

Saddlebag?

Helicoil could be the best option
there is a video on here
http://www.emhart.com/products/helicoil.asp

makes you wonder why they do not fit helicoils as standard.
Just one thing that I would ask is about the original screw / bolt it is just a guess but was it too short to start with and therefore the reason for the problem ?

http://www.highpath.net/highpath/cycles/info/rear.html

You will be talking hundrededs of pounds for a limited run custom made deep groove radial ball bearing.
Who says they are custom made?
Take them out measure the outside diameter, inside diameter and the width (of the outer raceway) probably a case of get an off the shelf bearing and use washers either side of the inner raceway to get the "custom width".

Highpath

What size are they?

"the idea behind this is to actually have something available, rather than a mythical item from the past which theoretically does the job, but you can't get hold of "
Fair enough but,
sometimes there is a reason why things do not catch on.

http://www.ibiscycles.com/tech/materials_101/4/

http://www.sevencycles.com/buildingbike/techsupplement/ti.php

http://aluminium.matter.org.uk/content/html/eng/default.asp?catid=89&pageid=2144417037

Kirk made a cast magnesium frame that looked like Black and Decker Workmate.

Very approximately a heavier frame will be stiffer than a lighter frame, regardless of whether it is made of aluminium, titanium, steel.

If the Young's Modulus of a material is taken as the stiffness of a given material then it is possible to factor in the density of the given material to get an idea of the stiffness to weight ratio.
http://reynoldstechnology.biz/assets/pdf/rtl_steel_alloys_extract.pdf

Titanium is stiffer than aluminium, but titanium is more dense.

There is the possibility that the idea of springy titanium comes from the difficulty of cold working titanium, where there can be spring-back.
http://www.timet.com/fab-p24.htm

The stiffness (Youngs Modulus) to weight ratio of steel, titanium and aluminium are roughly the same.

http://www.thecyclingexperts.co.uk/cycle-industry-jobs/

Santana/ Formula
EDCO IGP

http://www.michelinbicycletire.com/michelinbicycle/index.cfm?event=airpressuremtb.view

http://www.autoexpress.co.uk/products/product_awards/248002/trim_cleaner.html

http://www.startingabiz.com/starting-a-bike-shop/

http://nbda.com/articles/bicycle-retailing-books-pg108.htm

If your granny is the Queen then it seems to be a good thing to do.

http://materials.open.ac.uk/mem/mem_ccf7.htm

Ebay

IADS International Alloy Designation System

http://aluminium.matter.org.uk/content/html/eng/default.asp?catid=214&pageid=2144417046

http://www.cptips.com/weights.htm

As long as you have a good solicitor, who can explain the need to keep hydrated when exercising then you will be fine.

Also remember Truvativ bearings are shockingly bad.

http://www.ehow.com/how_2080248_scare-away-magpies.html

http://www.hopegb.com/page_mep_force_57.html

When you say "Bored in hospital" thats true. There will be some drilling going on.

http://www.parker-international.co.uk/14265/Tifosi-1-1-8–Headset–Campag-Fit-.html

http://www.sutherlandsbicycle.com/Chapter12.pdf

http://global.smith-nephew.com/us/Plates_and_Screws.htm

"What's the best way to get rid? "

CD shooting, its like clay pigeon shooting but with CDs instead.

Dot 4.1 ?

DOT 4 and DOT 5.1 are similar.
DOT 5.1 is really for motor vehicles that have ABS, but is OK for bikes.
There is so little fluid in bike brakes that if you bleed them at all it will be enough to flush them.

http://www.hopegb.com/page_mep_force_5.html

"DU metal"
Depleted Uranium?
It burns quite violently

These people can remanufacture (repair/rebuild) stuff and might be able to supply what you need:
http://www.bba-reman.com/uk/index.aspx

One persons opinion:
http://www.rivbike.com/article/clothing/the_shoes_ruse

Reynolds 531, 853 etc and Cromoly = Low alloy steels

http://aluminium.matter.org.uk/content/html/eng/default.asp?catid=89&pageid=2144417037

Reynolds 853 used to be just the seat, top and down tubes but
853 seatstays & chainstays are listed
http://reynoldstechnology.biz/assets/pdf/rtl_2010_parts_list.pdf

Materials

"The chemistry of air-hardening steels like our 853 and 631 means that not only are they stronger than typical chrome-alloy 4130 type steels, but after TIG o r MIG welding, the heat-affected zone (HAZ) will be significantly stronger due to the grain structure formed on cooling in air. The positive result from this is a higher fatigue life for the joint – usually 30-60% better than an equivalent Cr-Mo joint. So less material can be used to achieve a particular target fatigue performance."