You may want to consider new gaskets or substitutes for the bezel to glass fit since the old ones will be dried and probably fall out when you open it. Most of the vendors carry them. For those nuts (yes they are hard to reach) I bought one of these.
Craftsman 6 in. Flex Spinner, 1/4 in. Drive
Sears Item# 00904355000 | Model# 04355
Just enough flex you can get around some of the stuff under there.
