B, they're a great bike. I have one too, but by the sound of it you got yrs in better nick & cheaper. Stock shocks are junk unless you only ride dirt-track. Give only about 5.5" rear travel. Not eligible for pre75 (unless yr in USA where they seem to allow them).
Downpipe was unfashionable in the day so they weren't rated that highly, but engine is great, decent frame geometry, they're fairly light. They could do w an up-pipe for VMX but its not easy to fit as there aint a lot of room above the head. Tank is a bit long so you may find some front-end wash-out, but you can fit a smaller 125 tank & move the seat forward to suit. Stock tires were junk also, adding to the wash-out.
Depending on what springs are in the forks you may benefit by replacing them. Some of the split rate dual spring jobs were too soft on the initial spring & too harsh on the 2nd spring giving impression forks are too harsh. Initial spring sagged quickly too. Can get more travel out of forks if you wish as there's a fair bit of overlap.
Nice looking too w white guards - much better than the black that came on the next (almost identical) model A3. There never was an A2; beats me why.
Enjoy! (but if you want to sell it, let me know)
PS Where abouts are you?