I have a Brocks trailer and just about everyone I wheel with has a Brocks trailer, with no issues. In fact, friends down south drove up here to buy a Brocks trailer. Don't know about quality lately, but I've never seen any of us need to get a bad weld repaired, and my trailer is about 10 yrs old.
Brad, yes, it's a great idea to get 5200 lb axles, not too many car trailers come with them unless you buy new and specify it that way. Make sure it has brakes on both axles. Don't know about now but Carson trailers used to come with no brakes or just on one axle. Radial trailer tires are the only way to go, not a huge expense if you buy used and it doesn't come with them. I've had excellent service out of Maxxis trailer tires, much better than any other tire I've run. Having a storage box on the trailer is very useful, can keep your tie downs in it, plus an assortment of spare parts and fluids that you don't have to load all the time. In my opinion, I'd stay away from wood decks. They work OK but over the long haul will need maintenance, and if you don't wear shoes all the time you could get a nasty splinter when the wood gets older and cracks. Bearing buddies work, I highly recommend them. Without bearing buddies it's a PIA to regularly grease the axle bearings, and many of us have had a bad experience with trailer bearings going out due to lack of grease.
18' is kind of long, unless you want to be able to put something else on the trailer with the Jeep. 16' works well for most, mine is 13' and some of the guys have 12'. But that's right, you have one of those big assed JK's.
