Garages around here are obviously doing very well. Not one I've contacted will fit a new starter motor for me, on the old Rover. They all seem to have the policy of not fitting owner supplied parts.
The snag is the Rover has an aftermarket high torque starter where the one way clutch is iffy. It sometime works - more often takes loads of tries. Worst on a cold start. Can take 5 minutes to get it going. Nor can a standard one be easily substituted, as the wiring terminals were changed to suit the new. Actually, a replacement part of the loom, and I'd not want the average garage messing with that.
I've bought a brand new motor - intending to fix the old one and keep as a spare or sell.
I'd be happy to sign any disclaimer they wanted about there being no warranty on the work. I also wanted a couple of other jobs more easily done with the car on a ramp, so not just a 'too small' job.
Suppose it will have to wait till the weather gets better and I can DIY it
- my old bones are simply not up to crawling under the car in this weather.