It is cheaper if you get it from Drew himself. His buisness is near Northampton. Give him a ring and he'll sort you out. Nice bloke as well.
The stuff is excellent. I have it on my 90 and it certainly makes a diffrence. It also look really good and actually fits. You do need to remove the seats to get it in and another pair of hands helps as it's quite heavy. The other thing you'll need is a pack of sharp Stanley knife blades. The kit is marked out with all the places to cut but as the material is so dense it does blunt a blade pretty quickly.
Guy