2x2 tubing is too big. you would needa 1 1/2"x3" tubing to not be seen. ive got 2x2 under my car now for the rottisserie, sandwiched to the floorpans and you can see 1/2" of the tub. would be better with thinner but wider tube. i'll be designing a set of connectors that are not necessary to penetrate the floor. when i do, i'll post measurements and instruction on building them that anyone of the members here will be able to understand! even be able to weld them YOURSELF!
Thanks Drew, I'll be anxiously awaiting too. Now that Hotchkis jacked up the price (I could have sworn they were less than $300 when they first came out) looks like the weld-in type are looking more interesting again.