I am working on my lone star commander and I want to put a couple swivel boat seats in it. They have to be removable though, and I don't want to use those clamp style ones that screw on the bench and I don't want to spend 50.00 a seat for a plate and pin style either. So is there a way to do it? can I drill a hole in the wooden bench and screw a big washer down for a pin to slip in? any advise or ideas are appreciated. Thanks Denny