The setup Great Lakes Diesel Works sells is very sturdy and has lots of little features making the installation easy as well as very functional. I checked it out real good at Muncie. It almost makes me want to install stacks myself... and I thought I'd never do stacks. I think about it now.
Besides the ease of installation... its built well enough to weld other steel brackets to it for tool box mounting. Thats important to me to save room since a short bed with stacks and a cross box leaves little bed left.