actually, if it's all mechanical problems a decent engine swap could solve all that and can be had sub-5k. the 1.8t (my old engine and brendan's engine) has been reliable as heck and seeing as the tranny was almost the same the swap would be pretty straight forward. you could spend another grand to get a crate engine, and then you should be worry free for another 120k km or so.
usually when you're looking at one problem, it snowballs into a million problems. that's what happened with my old vr6 that i'd fix one thing just to find that something else needs fixing.