I am going to build a pvc tractor for my meaties and want to buy the 3 4 and 5 way fittings local or somewhat close, don't want to order over the internet. Did any body find them at a big box store or chain store? All the fittings on the internet say furniture grade, is there a cheaper grade suitable for a tractor? Weres the cheapest place to get them? Has anybody built a pvc tractor without the 3 4 or 5 way fittings?