[crakarjax]

I'm probably going to go with the integral belt seats, but also want to make sure it's as safe as reasonably possible.

Adding bracing seems like the only way to add strength, but you mention bracing the front more than the rear. At the same time, the lever action of the shoulder belt will put more stress on the rear mounts. So why not brace the rear more than the front?

Additionally, what are typically the best mounting points on the cab for the bracing that will withstand high impact forces? I'm thinking that bolting down through the floor and into a square tube crossmember that sits under the frame lip would be best but then maybe the attachment would be *too stiff* -- having some give in the metal to absorb force during impact is probably a good thing, to some degree.

A lot of guys are going this route and getting an example of a sufficient mount from a safety perspective is likely to save someone from injury, or their life.