1. None, do it!
2. I like 12 qts. better than 5 or 8 depending on pan type. Also 20 to 50 psi @ start up, depending on
oil pump pressure at prior shut down. It's just the ticket, when your FE has been sitting awhile.
3. My accumulator is piped to a seperate location out of the engine bay. The total piping/hoses provide a extra 1qt. total; for the system.
4. I have a Iron block/head (C5AE-H) HM built FE 427 sideoiler, pushing the old double nickel. 500+HP & 500+TQ. I'm sure your chosen system will serve your stroked 482, just as well as mine does for me. If properly installed.
5. My accumulator is located under the passenger (under carrage) seat. It works well on the street & the track. As I don't do much (knock on wood!) off roading.
6. I use a Morroso 3 qt. accumulator, with a 8.5 qt. baffled pan w/windage tray. The piping also adds 1 qt. This gives me a total of 12+ qts. at all times. Even when I'm driving hard into a corner, or pushing 7 grand. But Im sure whatever type accumulator you chose will serve you well.
I hope this helps! By the way great choice on your ride
Not that I'm
Biased or anything
