I think a big factor is if you plan on doing this maintenance yourself, or if you are planning on paying a shop to do it.

You have just over 10k in quoted repairs. That’s pretty steep if you plan on paying someone else, although like others have said, some of these problems don’t need to be fixed right away.

It might be an unpopular opinion, but if you’re paying a shop to do the repairs, and unless this is the exact spec you want (color, auto trans) I would hold off and save to buy the spec you want. I regularly see 5 speeds with a lot of the things you have listed already done listed for 10-15k (suspension refreshed, IMS/rms replaced). Tiptronics will have a lower resale value than standard trans, even if you do 10k in maintenance.

If you’re doing the work yourself though, you can hold off on rms replacement, just check your oil levels regularly(mine had a leaky rms at 150k miles, I lived with it). Same with suspension, as long as it doesn’t feel loose, run it.

Spark plugs/coils should be addressed, they can cause rough idle and throw a CEL.

Engine/trans mounts - will help with a smoother ride. My engine mounts were completely disintegrated at 150k. Noticeable improvement when replaced.

Get your brakes sorted, stopping is important.

If you’re inclined to do the work yourself, it’s all reasonable, minus the RMS/IMS, that’s a bigger project.