Tyres - if it's a daily driver, try looking at something like Kumho KU31. I have them on my car and I think they're great for what you pay. I like my cars to corner in the wet
volt gauge - just pull it out and replace the bulb, a Philips head screwdriver and some patience is all you need.
Thrust bearing - gearbox out, lots of labour, $600+?
Climate control - there's a thread on this forum that explains how to fix it, sorry I can't remember where it is atm.
My two cents
Great buy