Got my Trailex put together. You guys were right, it's a beauty.
From a dealer standpoint: The machining and quality control are outstanding. I didn't have to run to the hardware store to find a missing part, use a drill, use a BFH, or swear a single time. And my back doesn't ache from lifting a bunch of heavy steel parts. It took me about an hour to get it all together, compared to 4 hours with the steel.

The shipping charge was pretty high, but I hope to remedy that with a bulk order.

Here's what I got:
A single well-packaged box of goodies and a complete frame.


Sizing up rollers:





Slight tuning needs to be done, but it's all there:



Thanks for the advice! I'll let you know how it rolls.