Thanks guys for the input.
I stripped down an old 14" 45 that I had found for parts as the reel and blade were no good. It is also a solid deck so it is of similar vintage. I plan to use the best parts out of the two machines for the rebuild. Probably a bit sacrilege to do such a thing, but for a machine destined for the tip, at least it can go toward another Scotty living to mow another day.
I'll get some more done over the weekend and keep you posted.
Simon