Yeah if you get the megamat make sure to get the auto version it gives more room since it flares out to the 2nd row doors. I got the regular megamat 10 initially and it is great but sleeping two on it is kind of tight. I then purchased the auto version and the extra width makes a huge difference.
This is the right answer get some wall mounts and put then on when you use them. If you want something that looks good all the time get overland ruff rack.
I would recommend everyone raises there vehicle to highest height once in a while and crawl under to inspect and look for loose bolts and damage especially after offloading. I had loose bolts before on underbody panels so I removed each one and put on a little blue loctite (Looks like thread...
I popped one of my tabs open to see what is under it. It looks like the tabs cover the bolts that hold the plastic cover on under the bumper. As long as bolts are in place and tight you can just snap the tab back into place by pinching the plastic hooks on each side of the tab in enough to allow...
On my R1S those are not hanging down. It looks like they swing up and snap into place. I am guessing they cover some bolts? Can you take a picture of what is in the cavity that they are supposed to cover?
Here is another thread with more detail and some examples of what others have done as well.
https://www.rivianforums.com/forum/threads/r1s-overlanding-v1-0-sleep-2-people-on-bed-platform-frame-w-full-size-spare-inside.23311/#post-468117
2nd row seat removal thread...
No build thread. It is just a sleeping platform made from my old rhino rack. I removed 2nd and 3rd row seats. Piano hinges so both ends can flip up for access. Supported by unistrut bolted to seat mount bolts. Covered in bedrug and ev sport line carpet set.
If the Costco tire shop says psi is too high for tpms have them show you the data sheet(source) they are referencing. If the cannot provide any they are just guessing based on problems with another vehicle’s tpms.