You could technically make them a bit shorter, so that you only use 10 ft of PVC per wing since its sold on 10ft sections. The ones I have are 1 1/4″ diameter.
Home Depot carries everything except the 4Way Tees. Amazon and Clean Run carry PVC tees.
You can use as just wings, or you can install some jump cups from Clean Run and use two wings as as a jump as well.
Let me know if you have any questions.