So, I checked the unladen weight and GVWR and I'm under the legal limit. Not really what I was concerned about but good to know, Thanks. Thing is i was originally going to buy a trailer without brakes. I'm glad I got them but the brake controller is an unexpected cost especially the install. I think I can install it myself in a couple of months when I have more time. I just want to know if using a 4pin to 7pin adapter will get me going or if I'm missing something.
I didn't think of running the E-trac vertically. That will give me a lot more options for securing whatever I put in there, thanks. I think I'll have the trailer place do that a couple (six?) inches in from the corners. I can always add more later If I find I need it.