Im sure Waxamomo can sort you out a nice deal on these bits

I use meguaris dimond glaze #85 with megs buffing pads on a DA buffer.
Then use menzerna for any left over polishing marks as it breaks down very well.
Not a fan of poorboys black hole. Ive started to use poorboys white diamond on even dark cars. Slightly easier to work with and gives any metallic flake that 'pop'.
Wax...No expert on a wax but been using colinite wax and seems to be the most hard waring wax.