I've sold all the parts on my old 456, so now I have just the frame, shock and headset to go. Very good condition.
Kona Howler - size Large (16 inch) - 23.5 inch effective top tube
Geometry charts are here (large/16 inch and don't get confused with Lisa charts) - http://www.konabikeworld.com/bikes/2k7/HOWLER/index.html
Full bike looks like this -
Can do frame specific photos if requested.
Seat tube reamed out to 30.9 by 18Bikes so it's dropper compatible. 18Bikes also faced and chased the headtube and BB.
Shock is a Fox RP23 Kashima and is 190mm eye to eye to replace the standard 200mm eye to eye. This has slackened the angles and dropped the BB to make it a short travel woods razzer! Great fun!
LoCo Tuning revalved the shock to suit the bike and also added a couple of spacers to make sure the rear wheel didn't hit the seat tube at full travel, so travel is nearer 97mm now.
Headset is a Crank Bros Sage.
£350 posted - sounds a lot, but with the dropper post compatibility and shock change it's had some good money spent in the right places.
I'm in Monmouth.