Thanks woodz, Haven't got into a diabolical mess as yet

Sort of vearing on the side of caution, see'in as if I lob it down the back garden type of thing, will probably never find it again, the bike that is - really do need to cut the grass come 3 feet high hedge! Need to do a complete strip down - check the chassis and work up from there. Usual story, bought the bike for pennies, an now I've got to find the faults, once I'm happy the miss'es gets to go for a blast. Already checked some parts of chassis an welding is required, so need to go back to absolute basics.
Will keep the beano guy in mind though! When I'm about ready to re-install engine into frame. Ima already gave me a site with some specs on it (

Ima). However, starting with the frame, an' total rebuild need to know jig dimensions (no signs of crash damage) but out with the vernier, slide rule (Any computer whiz's want to debate this point?) Once, many's a year ago I rebuilt a bike, sprayed it looked the bollocks, but unfortunately became a death trap over 30 mph, frame was twisted. Hence a request for Honda workshop type of stuff today!
Major project is about to commence!
Don't you just love it??????????????