One plan for this summer is getting my old 1541 back in working condition. Here are a few pictures, because there are only few on the internet.

The capacitors on the mainboard. I haven't replaced them yet. None of these appear to have leaked.

The capacitors on the controller. I couldn't read the voltage on these and the service manual also doesn't specify them.

The old belt vs the new one. The old one doesn't expand at all anymore.