First A-833 rebuild, what to look for?

Hey guys I got my hands on my first Mopar 4-speed to rebuild and it's an 18-spline to boot. My cousin bought it a year or so ago and took it to a local trans shop to be checked out. They said it needs to be fully gone through and my cousin didn't want to spend the money so I decided to pick it up and check it out myself.

I received it from the shop already disassembled and started looking over things and familiarizing myself with how manual transmissions work as this is also the first one I've ever messed with in general. What are some common wear areas to check? Looking at the parts the guy from the shop noted the shift forks are worn which is very visible. Also the 1st gear synchro teeth (on the gear not the stop ring) are pretty worn over and some are chipped a tiny bit, probably gonna need a new one of those. I'm also thinking new stop rings kind of as a given and they aren't too expensive from Brewer's. I'll get some pics posted soon btw.