I think I know exactly what you are looking to make. This is basically the same idea I had with my rack. I used 32qt tubs though. Any reason why you want to go with the 41qt?

Personally, I won't be doing a ton of breeding for a few years which means most of my females won't be that huge. Once I am out of school I plan to build a female breeder rack and a hatchling rack.

Here is a link to my rack process and such: http://www.ball-pythons.net/forums/s...ys+rack+kaorte