I have a photocopied parts manual and a poor quality photocopied user manual somewhere in the shed. I am travelling until mid week, but will look em out when I get back.
I also have a dead JT25 in the shed. Cylinder and piston seized. I have one guy interested in taking it off my hands, but if that doesn't materialise will let you know.
Postage on larger items might be a problem - I live in the channel islands.
And Gas Gas UK are definitely worth givin a ring for parts. Really knowledgable and unbeleivably helpful.
Lastly, how did you identify your bike as a 93. It looks slightly different in certain areas to mine. May be worth getting frame and engine numbers and giving Gas Gas UK a ring.
Cheers
Julian.