Hello! Came to this rather late. I think all of your choices are good to go as they all appear to take mudguards and panniers.
Here’s a few random thoughts about bikes and kit.
– IMO mudguards are a must.
– If you’re riding unsupported, then a triple is also a must, unless you’re travelling VERY light. Normal triple and 12-27 at the back should be fine.
– Panniers are great and the most stable way to carry kit. However, a big seat and bar bag is much more aerodynamic and you’ll notice the difference on descents and flats at speed.
– Try and get all of your mates to rock up with new tyres with good puncture protection (eg Conti Duraskins). They’ll always be one who goes for the race tyres hoping to get a lick of speed, and they’ll be the ones who you wait for as they puncture 6 times over the ride.
– Better to carry one decent mini track pump (e.g. Lezyne) in the group than 5 crappy mini pumps.
Here’s a book of my LEJOG – there’s plenty in there about routes and kit etc, and even more pics and inane banter!
http://www.blurb.com/books/1931111
I rocked a Lynksey Sportive on my LEJOG and it was the shizzle.