Remco Installers near Huntington Beach

We need to have Remco modifications made to a vehicle we're buying in the Costa Mesa/Huntington Beach area. Last time we had this done we had some problems with the installer (no hot lead, so dingy's battery went dead; and loose fittings drained tranny fluid). Anyone out there know of a very good, competent and honest installer in that area?

Thank you so much,
Louisa