I run a Leer cap that I picked used a few years ago, and it was built in 2010. I installed rails from a jeep Cherokee and use my Rhino Rack cross bars. I on most camping trips haul a canoe and 2 regular bikes on the rack and have not developed any cracks yet.
I am sure you can tell I am cheap.
I am with you on getting a bigger rig, I have always wanted a power wagon, but they are always way over priced or if reasonably priced of way higher mileage. So I decided to keep the rebel and just make it my way. I try to pack with the limited payload in mind. Thus far we have been able to make it work
John
My Leer cap is also used. I am also a cheap basssstard. It was made in 2011 for a GMT900 body, but is sitting for years on my 2014 K2 body k1500 GMC. With a Craigslist-sourced rack. It all works. I do the same. When I built the platform in the back, I forwent the bottom sheet of plywood for weight savings. Other than that, a couple of big backpacks, cooler(s), some tools and gear I didnt weigh it all, but gave a jaundiced eye and a yardstick to my rear rear well clearance.
I try to stay half to 2/3 of total available haul weight, if possible but sometimes it creeps up there to 75 or 80%
I would love a k2500 GMC Sierra but I cannot justify the cost and higher consumption of gas as I use it daily as well