I need help from those who possibly live close by, in Southern California[LA,Orange,Riverside counties]I live in Riverside. I currently have a dual Pr box with 15" holes on it. I need it to retrofit it for 2 18" prs as I'm thinking to get the Tumult driver to replace my BP 1503,though even that driver could be better off with the Stryke 18s then the current Adire 15s. I don't have the tools,nor the "means"[not much of a handyman myself] to do this job,so anyone who could help me out would be well appreciated![name your price!]. I can bring the box to you if needed. Please let me know,thanks in advance!