By virtue of the fact that they’re not offered for your truck, should be reason enough. Unless you’re handy and understand how to make them work. (They may work?)
Moreso, unless you have a small camper, tieing a large camper to the flimsy bed and bumpers on newer trucks is just a losing proposition,besides all the holes in the bed and bumper for a “short term solution” as you describe.
Torklift will be easy to install and easy to resell in a couple years since they’re for a current model very popular truck. And they won’t put holes and stress in your truck bed and bumper and will be well designed to handle the camper. As you said you have turnbuckles already that you can reuse.
2016 Ram 2500, MotorOps.ca EFIlive tuned, 5” turbo back, 6" lift on 37s
2017 Heartland Torque T29 - Sold.
Couple of Arctic Fox TCs - Sold