RichardL, I knew what you were referring to - so there was definitely no offence taken. Anyway I've been more than a happy dummy today working on my GF. So much room to have my tools handy and somewhere civilised for my wife to put the occasional mug of tea down. See photo.
Scotty, thanks again to you for pointing me in that direction.
The winch, as you may imagine, has a wire rope with an eye hook with safety catch on the end. I took two short lengths of strong braided poly rope (left over from my sailing days) and tied loops in the ends to form two strops, each one was passed around a lower fork leg (below the chrome oil seal housing) and hooked the other ends on the winch's hook. Both lengths of rope need to be the same length after forming the loops otherwise the pull will be uneven and will want to turn the front wheel.
I made a few modifications from the original plans:-
1. I fashioned an angled slot in the top for the 2" scaffold plank ramp to fit in so it could be locked into position by dropping two 12mm bolts through the angled brackets bolted to the end of ramp and down through holes in the top (no need for nuts on those).
2. I cut two 4" x 2" slots in each of the sides so that I could just drop in two 4" x 2" to give the top extra support. Not really needed but I'm always a belt and braces person.
3. I also cut hand holes in the sides and top to make them easier to lift and move for assembling and dismantling.