Hornet1

Which one of the following method should I use for mounting my gear on my 30% Hostetler Cessna? The main gear will be mounted to a 3/4" ply, should I use brass inserts, blind nuts or lock nuts? As for the front strut which will be mounted to the 1/2" firewall, again, brass inserts, blind nuts or lock nuts?

Any information would be greatly apreciated.

Thank you