Haven't looked a parts express. I have something in mind if I dont find anything here. I've gotten a few pm's, and hopefully others will post up what they have.
I have a set of memphis 4" and a set of Phoenix gold rsd 4" both are on one of my display boards, They have very very little use!!! Both are like brand new, and come with full paper work and original box. $50 shipped each set. I will get you pics later today.