It depends do you think you want to use the car as a winter beater or something? Do you need a/c if used only in winter? ABS can be worked with you don't really need it. My 03 doesn't even have factory abs. Suspension should be replaced if never done before for sure.
2003 Ford Focus ZX3(Brokus) - old and still busted
2007 Subaru Impreza 2.5i - current DD