I 've had an 84 SL for a number of years.
Parts are easy to get on-line and not a big deal to install.
When looking, check the canvas top. ($1000 +)
I have retro my AC, so figure that in even if it works.
Check Cruise control.
I do not have a garage but have been using car covers (california car cover) and protects car really well.
Just noticed rust by door moulding, so removed and filled and painted for a clean side look.