I would buy a used Reflex (or maybe helix) before I would buy ANY Chinese copy.
They are bullet proof and re-sellable.
Any premium you may pay you will recoup in either resale or over the life span of use.
The Texas rig mounts very simply using U-bolts to the 2 rails that run under the Reflex chassis.
It creates a quite strong box section.
Sorry I don't have any good pictures of it, this is the best I have.