Trying to figure out what to do this summer im wanting to get a dog box but being a broke college student cant afford to spend 3k on a box. But I dont want my dogs getting hot either.90% of my training is within 20 min of my house. I have 2 dogs and normally train alone so I half to setup wingers and stuff before I run them do you think plastic crates will be ok or should I come up with a couple thousand for a box thanks