Binding post upgrade for Classe CAP-151?

Any recommendations for upgrading the stock (red/black) binding posts on my Classe CAP-151. It is an earlier model chassis with 4 bp's, vs. later models chassis w/8.

I'm NOT looking for anything that would require additional modifications to the chassis, or the binding post itself.

I'm also NOT looking for opinions or suggestions from those that have no specific knowledge or experience with this particular model/application.

Thanks for your help and cooperation.