Your evap. is 8g/day? Damn, that's pretty high.
Get rid of the bucket and get a Deltec stirrer. Sorry to point you in the expensive direction, but that is the ONLY reactor I would buy based on my experience. Or switch to a 33g Rubbermaid garbage can.
I think that right now, the bucket brigade/garbage can is my best option. Aguy can only afford so much ya know.
I will do some research on the Deltec tho, thanx.