Currently I am getting the back breaks fixed, new shocks and springs, new fuel tank and the wiring harness done, also replaced the oil pressure, temperature, and fuel gauges. All of this is costing me $6500. I plan on driving this car around 5000 miles per year as I don't want to just let it sit in the garage.
I believe there is an oil pan leak and possibly a rear seal leak. The mechanic wanted to basically take the whole engine out and clean it including the carbs. When I heard what he was going to charge (8K)I decided not to since I just bought the car.
First off, I HIGHLY suggest you download the online Ames Performance catalog and price individually each item that you are getting replaced/repaired. I don't think it will take very long to see you are being ripped off at the prices MR $100 AN HOUR is charging you.
Rear brakes, springs, rear shocks, and gas tank are all "simple" remove & replace items. ANY shop can do these to include your average local brake shop. BECAUSE you don't know mechanics, you should check around locally and get several estimates to get your best deal. A dealership might even be a consideration, but I would "network" a little and talk with other old car owners, go to car shows, and get some recommendations as to whom they use as a mechanic/garage.
8K to remove the engine and "clean" it????? I don't know what that means, but you can have the engine professionally rebuilt for less. The carbs, those should be sent out to a professional rebuilder -period.
Not trying to make you feel uncomfortable, but you need to get another shop to do your work at a fair price.