Do you need the slower speeds? They run on a different mechanism to the faster speeds and their not working right will not impinge on the faster speeds.

I am struggling a bit with your prices - it would seem to be about 150 for the camera and 100 for the CLA - that makes about 250 for a working clean camera - more than I would pay for a Rolleicord. If the seller will help with the cost of the CLA, I might go for it, though, as you could be looking at a good camera for the next 20 years for that cost.