Just to let you know, the A2/A2E/EOS 5 model cameras were noted to have a fragile mode dial. I owned two of them and the dials broke on both despite treating them gently. They were very good, lightweight, reliable cameras otherwise but it may be hard to get parts to repair them these days and you will need to repair that dial eventually.
The EOS 1n was my favorite film Canon. Reliable to a fault and tough as a hockey puck with excellent AF. It's heavy since the plastic is only a body covering, like paint. The actual body is metal and it's built strong for longterm functioning. At one time these second hand cameras were found cheap but I'm sure they cost more these days.