I have replaced the folding legs with 2 posts and used 4 of the aluminium post brackets. I used screws (as mentioned above , not too long as they will definately tear up the carpet). Always leave the table up when traveling with no problems and a simple matter to take the posts out by just lifting the table off and laying the legs down to convert to a bed.
Jim & Eileen
Silverado 1500 Crew Cab, 5.3 ltr, prodigy controller.
2009 Rockwood 2604.
Running mates Max & Kate Chihuahua's
Hobie Kayaks on Thule rack on truck
Retired Army EOD