Trans Brakes, who does it best.

So I'll be switching to a brake over the winter and trying to decide between the three valve body's.
-Cope with their Billet valve body $890 + shipping to Canada
- A&A $770 +shipping
-ATI compuflow $948 Free shipping

Also
-How much deeper of a trans pan is required for a trans brake valve body?
-would anyone here know if these are considered One wire or Two wire brake solenoids when choosing a bump box. Davis bump box list two part numbers.
TIA
I have two CRT transbrake's. They are a very nice piece. Not one issue. I also have an old Griner that has been working great too.