Your problem sounds like my dad who recently got back into riding and found his old Alpinestars now hurt is feet. He bought the expensive Sidi boot mentioned in a previous post and has been very happy.
Late last year/earlier this year my wife and I wanted to buy a 14 foot Carson Rebel. We called and talked to many Carson dealers as well as visiting a couple in person. All were great, the exception being the Gardena store. The salesman was somewhat short in his assurance that the price quoted in person at the San Diego dealer on a leftover 2008 was not possible, that we could never get one at that price, and that if we did the stickers and minor lot damage would not be fixed as the San Diego dealer said it would. Unfortunatly I think this may be the factory (my wife called on the phone, we never had reason to go there). We didn't let someone's bad day sour us on the brand, and ended up finding a good deal on a used trailer instead of buying new, and have been very happy with it. The few parts we did need were easy to get at the local Carson dealer, who is very easy to deal with, or in many cases the parts are generic and can be found at stores like Camping World. Our frame is well made, the wired are nicely routed, we were provided with an exceptionally strong tongue jack, the finish is good, and nothing seems loose. I have been around trailers where most cuts are done with a torch, providing an unfinished look, I don't see this on ours. We are quite happy.
I have the Primus IQ (the newer electronic one,rumered to be the same electronics as the p2 but I won't guarentee it, not the old primus which I think had a pendulum). People seem to overlook it and go for the P2. It has been a while since I did the research, but if I remember correctly there were few differences, the primary one being the number of axles it could control, and it saved some money.