I've been using a peak 1 stove on and off for over 18 years (the same one!) and I cannot praise them enough. The big drawback (with mine at least) was the requirement to use Coleman fuel. I was really pleased to find this thread. After a little background reading and a few 'phone calls a very nice bloke called Peter at:
Ramage D I Y Equipment Hire
43 Liverpool Rd North
Burscough Lancashire L40 0SA
Tel: 01704 892384
agreed to get some Aspen 4T in stock. He now has both 5L and 1L sizes.
I'm not, in any way, associated with Ramage DIY but thought it would be a courtsey to both Peter, and the forum members to let everyone know there is a stockist in the NW. They are about 15 mins (if that) from Junction 27 of the M6.
Follow the signs for Martin Mere (the wetlands bird sanctuary where they will be filming Autumn Watch again this year). As you turn left off the main Southport road, go to the end of the road, right at the lights and Ramage DIY is about 250 yards down the road, on your left, just before the Tesco store.
Give Peter a ring to check stock before popping in.
Aspen 4T stores really well (unlike petrol) so get some in now ready for your travels next year!
Thanks to the individuals who made the original post on this subject.