I own the same basic board- only diff seems to be that mine is not as "thick" (tall, when sitting on a table) as yours. Interesting.
Anyway, great board, I use mine for live sound. But No, you can't have my power supply. (Does ANYBODY else remember that Slade named one of their albums "Keep Your Hands Off My Power Supply?") But I did download a manual and schematic for the power supply, so you could find that source and build one. Feel free to PM me if you run into any snags that maybe can only be cleared by seeing or photographing an existing power supply.
EDIT: Mine is actually a bit different than yours- mine has 2 pre-fade monitor channels and 2 post-fade effects channels- but I think they are jumper-able so as to function as one or the other.