Like the many who have gone before me, I am currently housing everything in tanks and hating every minute of it!! They are bulky and heavy, a chore to clean, and I'm a total clutz so moving them around is an accident waiting to happen. I'm making the switch to the racks very soon. I am picking this one up off a fellow breeder:
It has 20 tubs and will be used to house my bucks.
We are going to build two of these in the next couple weeks, to house the doe colonies:
http://www.arbreptiles.com/cages/rat_rack/ratrack.shtml
I don't think I will do the water system though, I'd rather fill water bottles daily than deal with flooding.
Here are some pics of my mice
One of my favorite siamese does, she's huge for a mouse.
Blue Splashed doe
Pink Eyed Siamese doe baby with a Satin coat
Splashed Satin weanling doe
Big bulky Splashed Buck
A juvenile Black and Tan buck that doesn't like to sit still for a second, hence the awful pic of him.. The tans are what got me into breeding mice in the first. An exhibition quality black tan is gorgeous, but they are not in good supply in the US, so I'm using my siams who have much better type to put some better type on the tans quickly. But, the color aspect I will have to work on for a long time, ideally the tan belly should be a deep rust color just like the Tan rabbit breed.
Your list of feeds looks alright, I would caution you on the corn though. Just like rabbit breeders, there is a split in mouse fanciers who believe corn is to be avoided at all costs, and those who think it's okay in moderation. Some swear up and down that corn causes a shocking increase in tumors and skin problems in their mice, along with wheat and soy. YMMV, I don't feed it because I tend to err on the side of caution and there's really no need to feed it.