Hi, I am trying to build a tractor for some broiler chicks. I would prefer to build out of PVC since I will be moving it by myself, and also to allow flexibility in the frame because the ground where I would be running it is slopey and uneven. I am particularly interested in the hoop-style structures, but I read on another thread that PEX pipe was better to use for the hoopy parts. Indeed, I tried to bend 3/4" PVC by myself and it was really tough!! I thought to use PEX for the roof and PVC (which is much cheaper) for the base. So I got some PEX pipes for the roof, and they bend real nice, but they don't fit into the PVC fittings. Any ideas? Thanks!!