sandwich plating a seat in, fia certified

hey guys wondering if anybody has any pictures of sandwich pleading a seat into a vehicle via F I a procedure, having a problem dreaming this up to making sure that it's going to pass tech. Just wondering if anybody has any videos or pictures or links out there (i have fia 253) of how to get a seat into a vehicle I need it low because I'm a beast and I'm driving a CRX even though no one likes it.
any legit help would be greatly appreciated, mocking up for cage now and would like to make some ground.

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All bridges burnt, island life is beauty

Lots of ways to do this. Basically I would weld 4 plates to the body , maybe 2x3 1/8 "or what ever fits. 2 inside the sill and 2 on the tunnel. Weld a couple 1 inch square tubes across and then you can weld tabs to get the seat brackets on. You can mount directly to the floor technically but I personally wouldn't. I like to leave a little room for stuff like rocks and stumps to dent the floor pan up...it happens frequently. Plus if mounted to the sill the the seat tends to move away from hard side impacts with the body deformation rather than having the seat stay still and get all the impact.

your words describe this better than the fia document, i can visualize that. gonna have to f with some larger square tubing to get an idea of ride hieght from floor then finalize with 1 inch at said height. stay tuned

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All bridges burnt, island life is beauty

Look about 1/2 down in this recent thread..there is a nice picture of seat mounts across the floor.
http://www.rallyanarchy.com/phorum/read.php?5,101052

Thanks for the help gene, got it figured with some help from someone with an open class car that's 6'6. Was over thinking it severely, I tend to do that wanting it to be good..

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All bridges burnt, island life is beauty