I'll add some of my thoughts, regarding dry sumps.
They have been in common use since at least WWII and are the best oiling system, for reciprocating engines. I ran Formula Atlantic for more than 5 years. They use a 1.6L Cosworth Ford engine, reving to 10.5K (I don't count the Toyota's they used for a time
) Those engines used a savage pump, 50% larger than the pressure pump, with a center pickup, -10 pickup and return. Pressure side, mounted pump to block. So, you can get by with that, comfortably. But, for V8's, it it's easier to use 2 stages for the return, one front and one back. The Open Comp car I sponsored, in the '80's, used 4 return stages, 3 in the pan and one in the right head, I consider that max but, you can mix and match stages. In gear pumps, the are 1.2 and 1.8 long pump gears (1.8 is from long ago memory) and you could make a 1.2 pressure x 1.8 return, for a simple dry sump system, then use a vacuum pump for drag racing.
Just as important, is the return system and the tank. The tank needs to be round, with a center pickup cone, -10 pickup (at least -8 pressure to block) and at least -12 return for SB V8's. There needs to be a Oberg screen (check them out if you don't know about them) in the return plumbing. It both catches fine engine particles and takes most of the air out of the return. You can use a regular filter but, you have to cut them open to check and the Oberg is reusable.
The tank needs to be round, at least 6" in diameter (6 x 16 = 8 Qt), to 10" and 10" to as much as 16" tall (add 1.5 - 2" for expansion and breathing, over the oil level) and then the filler and breather line. The return should come in from the side and dump on a perforated plate or replaceable screen. Oil level should be near the bottom of the screen and unless you create more that 3G's, that's all the baffle you need.
I also have a very well designed H&M SBF dry sump, from the mid '60's. They machined a pressure pump and savage pumps (2) that bolted to the stock location, inside the pan, chain driven from the crank, with only a single inlet and outlet, bulkhead fitting in the pan. All stages are the same, with non standard gear pumps, mounted inline with the crank.