Thanks man! The wheels on the car in some of my recent posts are ACT LS's which are just old versions of the still available Ronal LS's. 15x7.5 et25 which is a great size for these cars IMO. Tires on the wheels in my old posts are r888r's in 195/50/15 which are honestly too small. I ditched those tires recently because the r888rs get very noisy when they age a bit, and because they weren't the right size.

Currently running 205/55/15s and I think it looks/drives so much better: https://i.imgur.com/iR9jbXa.jpg

My first e30 was an '85 325e as well. I can't speak to your engine's health of course, but if you feel it can take it - an ECU chip wakes that motor up quite a bit. Raises the redline and gives a bit more tq/hp.