I forgot to add the cost for all of it. So here is a break down, it was all bought from Home Depot except for the valves and tubing and such for the watering system.
18 2"x3" x 8' studs @ $1.73 /ea
9 mixing tubs (AT2606 is the item #) @ $5.47 /ea
1/2" x 1/2" Hardware Cloth in 25' roll @ $30.97
Water Bucket @ $2.60
Water Bucket Lid @ $.98
2 Boxes of 2-1/2" course dry wall screws @ $6.47 /ea
1/2" plywood (had them cut it for me) @ $13.97
Total cost is $141.83 + tax (@ Home Depot)
I also used some 1-1/4" drywall screws in the piece of plywood. (I had some of these already.) And I used some smaller 1" screws to hold the 1/4" x 3-1/2" "slider" piece on the spacer.
Then, I chose to use Agselect(dot)com for the watering system, here are the prices for that.
6 Barbed T's 3/16" @ $.53 /ea
Tank connector w/ 3/16" barbed @ $8.90
6 Edstrom Vari-flo Valves 3/16" barbed @ $3.99 /ea
6 mounting clips for Vari-flo valves @ $.51 /ea
40' 3/16" id flex-tubing, black PVC @ $.25 /ea
Drain-vent, Barbed, 3/16" barb @ $3.15
shipping UPS Ground @ $14.93
Total for watering system $67.16
Total for 3 x 3 rat rack-------------------------$208.99 + tax If my math is right!