More bits comming out of the woodwork for this, seem to have 2 sets of forks that are k0 style with rods being part of the top nut, even opened up some other 500 forks to check, they are definitely different and I have 2 sets, I can only think they came out of the boxes of spares that came with this bike. I am begining to think I should have taken better note of what was in those boxes of parts, it might be I can accound for another k0 in bits, shame there wasn't a spare frame in there. Tool tray and airbox also came to the surface. Very nearly the whole bike retrieved from the loft. So far looking good to throw back together with very little actual spending for a functional mot able machine. What luck I get inside the engine I shall wait and see.