Interior: Hideaway seat safety belts

[WagonWill]

I'm planning to soon retrofit a (factory original) hideaway seat in my '65 Commander Wagonaire. I'd like the 3rd-row seats to also have seat belts, if possible. I've already had seat belts installed (with no difficulty) in the second-row seats, but since the hideaway seat is a different animal, I'm curious whether anyone out there has any experience/insight into such a project.

[StudeRich]

Since most 3rd. seats are not used with Children in them, not many, if Any would know how to install belts.
But with Large reinforcing Washers, they can go anywhere that works.

[WagonWill]

Thanks, that’s my hope. The 2nd row floorpan at least had factory holes for securely attaching belts (even though the build sheet shows the buyer saved a few bucks by omitting them).