Need lenses and gaskets for some Hydrel 4518B-MR brass in-ground uplights. Looks like the part number is superseded by the newer #9310. Any good parts sources? Also, need to replace at least one socket. The originals are rectangular, ceramic bi-pin Leviton made in Mexico. Customer was messing with one that was broken (before he called me) and cut out the old socket. I noticed the socket connections in these seem to be "potted" in some kind of epoxy-like material. They're in turf. Do you think I should use a Mini-Ace to connect my socket leads? One thing I like about the fixture is the socket is not screwed to the body, rather, there's a stainless steel bracket that holds the rim of the lamp in place with four tough prongs. How come no one else does it this way? The finned cast brass body is well thought out too.