An original car in that condition is worth leaving it alone. My father bought a '64 Valiant new. Cheapest on the lot 4dr with 170 slant and 3 on the tree. Only trouble was a clutch shudder when engaging the clutch. He had work orders from the day after taking delivery of it that were an inch thick pile. They dialed the flywheel and bellhousing alignment numerous times. He finally told them to put a new clutch in it at his cost. No more problems. There is a Chrysler distribution center in Red Deer, Alberta. We were going by and Dad stopped to talk to them about warrantying the clutch. "Chrysler does not warranty clutches" was the response. Dad swore he would never purchase a Chrysler product with a manual transmission ever again, and he did not. Now I understand why they would have that policy. There are people that leave a toe on the clutch pedal or rev snot out of the engine and slowly engage the clutch. They wear them out prematurely. Dad had a Studebaker Champion, a Hillman and a Ford Consul prior that I remember as a child. He had a '40 Ford Business Coupe when I was a baby. All with manual transmissions and never had to replace a clutch.