Like Nrobert10 says, MGMetalworks made a steel plate for his floor and mounted L Track to it. He anchored the plate to the existing seat holes and added some others to keep it down. He didn’t post much more about it than that though. Here are the posts he made about them. Unfortunately the photos no longer work.
He is selling Unwin Seat Lockers on his website. Kind of like the Qstraints JFlo posted.
MG is super smart. I’ve been meaning to contact him about this. I’m hoping I can buy the steel plate and some seat anchors from him.
Not sure how most of this info works for you If you’re already built out Zuren.
I’m still collecting parts but I’m very interested in using this approach as well.
I’m thinking of a modified RB50 layout with removable chairs mounted to L Track on the passenger side rather than the bench bed.
I’d also like to bolt my driver’s side cabinets to the floor with L Track.
Like BoyWonder says, safety is a big concern.
I’m hoping that the steel plate bolted to the floor through the existing seat mount locations gives a sturdy platform to secure the L Track and then the cabinets and seats.
Ideally I’d like use the original Ford captain’s chairs I have and still be able to use the seat belts mounted on the wall.