Ho boy....!

You probably also have leaking idle control valve hoses (the fast idle problem). This is easier to fix, but all the rubber is bad, you need to replace it all.

If you aren't interested in doing all the necessary work yourself, you should consider selling the car, it will be VERY expensive to pay someone to fix everything.

No AC is often a bad fuse, check (replace, really) all of the fuses, it's cheap and may fix several things. The fuses are ceramic with an aluminum strip, the aluminum corrodes and cracks, and the fuse won't conduct even though it looks fine. The can also corrode away at the contact, so that while the strip conducts and it will test OK, it won't contact in the fuse holder.

Intake manifold and injector seals really require removal of the manifold to fix. Another leak spot is the plastic connector box between the fuel distributor and the manifold -- it will requrie some other parts, too as it usually won't come off by now intact.

Peter

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1972 220D ?? miles
1988 300E 200,012
1987 300D Turbo killed 9/25/07, 275,000 miles
1985 Volvo 740 GLE Turobodiesel 218,000
1972 280 SE 4.5 165, 000 - It runs!