Dale most of the parts for this were bought at Lowes. The only parts that were ordered are the ebb&flow drains and hose from BGhydro. As far as a plan goes no plan I saw a video of one simular. Pumps you can get at Discount Pumps I found all but one at Lowes all closeouts cheap.
Basic parts list. For spray tank 1/2" Piping
4- 90 elbow
1- t fitting
1- 10' pipe
1- valve
1- 1/2" threaded coupling
1- 1/2" tubing barb
6- Rainbird 360 sprinklers
1- 1/2" ebb&flow drain
Glue
Any tub
I hope that helps.
Pan4