[Tommy]

I agree with Bill (Mr. Mustang). I'd look for a well regarded general purpose shop to do the tune up, find and fix the intake leak, and fix the differential leak. If you like their work, ask them for an estimate on the other jobs (e.g., brake and fuel lines, tank vent and filter). The wiring and Dynomat jobs are not rocket science, but they can take some man hours. If you've got more money than time, those are good jobs for a competent hotrod shop. If you've got more time than money, you might be able to get enough good advice here to do those jobs yourself.