Brian,
am looking to buy
http://www.alliedelec.com/search/productdetail.aspx?SKU=70099255 for the base,

and

http://www.alliedelec.com/search/productdetail.aspx?SKU=70099204 for the connector.

my mast wiring is 14g which should be fine as its only a mast tricolor/anchor maybe 3.5 amps
max with both lights on which shouldn't happen.

not sure about your other comment on parts though. U wasn;t going to bother with covers.

Rick