During the 1950s and into the early 1960s many small town Ford dealers were still working on Model A Fords. Our local Ford dealer (NW Ohio) had a good supply of parts. They even had some sheet metal. Engine, trans, rear end, and brake components, to name a few were still in stock. Rebuilt water pumps and distributors were also available.
My Grandfather and father were in the garage business. There were a lot of Model A Fords still on the road. Grandfather probably overhauled a half dozen or so engines each year.
H.G Short Company of Bellefontaine, Ohio was an authorized Ford parts supplier selling to the trade. They were also an authorized Ford Motor Company parts rebuilder. We purchased most of our Ford parts from H.G. Short. Stocked factory approved rebuilt water pumps, fuel pumps, distributors, and carburetors. On ocassion purchased rebuilt short and long blocks from them. H.G. Short had a large parts truck that came by each week that provided any needed genuine Ford parts. The garage bought all its ignition parts from H.G. Short.
Sometime around the early to mid 1960s an obsolete Ford parts house from back east came through the area. They had a large truck and would purchase any Ford parts from the Model T era up through early forties. They cleaned out just about every small town Ford dealer in our area. That ended easy access to Model A parts.
A far as a grease pit goes, we had a pit until 1956. It wasn't dangerous. Didn't have a fan and no one seemed to be concerned about fumes of any type. I hated the pit in the summer. Down in the pit on a hot, humid summer day working under a hot car was no fun. But working on a car from down in the grease pit was no big deal. The garage also had a single piston, frame contact lift. Seemed like I always got stuck working in the pit during the summers, school weekends and school vacations.
Best part of the fifties and sixties, if you had a Model A was the easy access to genuine Ford parts. Plus the junk yards were full of Model A Fords with a wealth of good parts and sheet metal.
Those were the days!