Motorcycle Repair: 1980 rotary top transmission, happy holidays, speed transmission

Question
Have a 1980 rotary top 4 speed transmission 29,000 miles.
I have never had any problems with it, jumping out of gear etc. It leaks oil bad. It is my understanding the main
shaft bushing, on the inside of the transmission. Has to be replaced to do it right. Do you rebuild transmissions? If you do, what do you think this would cost? I realize that extra parts needed would increase the cost.  

Answer
Yes, I rebuild trans. The cost would be in labor $250.00 Plus parts. It would be hard to tell you what parts you would need until I get it apart, but since you not having trouble with it, except for the leaks, you are not going to need much. You can contact me at the shop at 937-354-3992 or cell at 740-360-9903
Happy holidays
Mike