If you don't want to do the carpentry..... for the first ebb and flow, buy yourself one of those under the bed plastic storage boxes. They are about 2 ft by 3 ft and about 6 inches high. A perfect tray for about 12 bucks, or if that's not enough, get two of them. Then buy a 30 gal storage box, plastic bin or whatever its called. place your tray on top, drill two holes into the bottom of the tray one for the pump and one for your adjustable drain.

SN