Couldn't agree more, been there and done that, a costly learning lesson to say the least!...As far as starter and trans mount, those are easy, cheap fixes.Head gaskets leaking at 200k is a motor rebuild, it isn't worth doing anything short of that. Mostly because you will encounter all the other problems that need fixing along the way ie; injectors, TGVs, sensors, oil pump etc.
The best direction I saw posted was, get a used Japanese motor. They all have 40K, just have it tested & installed.
I hate trying to keep old, high mileage cars going, in the rust belt area I live in! If you want to keep it as a spare vehicle and don't mind putting the money into it then I say go for it but otherwise as an everyday driver, replace it is my advise (if you can afford to) for keeping ones sanity.