Help 97 kx 100 restoration

Jan 27, 2020
I recently picked up a free 97 kx100 and plan on tearing it down for a full rebuild.. The item I am having trouble with is the cylinder. Mine was missing ,and i have searched for one with no luck.there are plenty from 98 up but none 95 to 97.. can i use another year cylinder and head or a cylinder and head from a kx80?or should i just buy a later complete 100 engine that i can get parts for? will a late engine fit my 97 frame?.. lots of questions, sorry, Haha Thanks!!