The plan is to weld 2″ x 20″ x 3/16″ plates to the cross members to allow bolting the seats to the chassis.
Test fitting reveals some issues. This bracket for the front harness eye bolt blocks the slider. It isn’t needed so it will get cut. Maximum forward seat travel is limited by this front cross bar. I think that is okay for my short legs.
I’ll also need to cleco the rear firewall to check clearance there.