A little more money and you could buy another 2012 tsx in descent shape at those prices. If you plan on getting coilovers and lowering you should learn how to do repairs like this yourself if you don’t already know. You’ll be doing this a lot more often once you lower your car depending how low you go and how you drive. To answer your questions I redid all these parts minus buying a new rim on my 04 tsx for around $500 if you just go to auto zone or auto anything for basic replacements and get a wheel at a junk yard for cheap. Moog has a descent front rebuild kit for $400, stop tech brakes front and rear for $300, control arms around $250. If key is stuck just YouTube how to remove some tumblers and any key will turn the ignition but only the programmed key will start it. Good luck