L-Tracks and Bed Side strength

What's up everyone,
I found a good deal on a Red Rock Overland bed rack for my, however its intended use is to slide in to the bed rails that 2nd gen. To combat that I was going to try and install some 4ft USCC L-track, as I've seen others use on TW, to the insides of the bed in a similar position for the rack to slide in and to add some tie down points.

My concern is the strength of the truck bed walls themselves as a rtt will eventually be joining the build. How can I reinforce everything to make it work with the weight? Or should I be looking in to an entire different process?

oh yeah it's the 5ft bed btw I meant to throw that in somewhere.

I've had the truck for a little over a year now and am just now really getting in to it, thanks in advance everyone I'm excited to really try and get this build started.

links for reference
https://www.extremeterrain.com/taco...JK3uSKlJ0o78zd6s-EEaAuB0EALw_wcB&gclsrc=aw.ds

$130 US Cargo Control 6 Piece Black L-Track Tie Down System, Includes L-Track Rails and Single Stud Fittings for Easy Installation, Versatile Trailer Tie Down System for Motorcycles, ATVs and More

https://www.amazon.com/US-Cargo-Con...WoaykUnw6-h9BKYoKFavEblmPxZjercUaAreoEALw_wcB