[VAC] 55 airstream?

[airstream lover <caravel66@xxxxxxxxx>]

I just acquired an airstream that is completely
gutted. I love the outside because it is in perfect
condition, but the floor is completely shot and I have
no idea how it gets power to all of the lights. There
is a little plug on the outside next to the license
plate that has three flat prongs in it. Does this need
to be completely rewired? Also, can anyone identify it
for me? The serial number is 6537. 26' from tongue to
bumber, and it looks just like the 26' Cruiser on the
vintageairstream site. The photos home page lets you
click on a 55 Overlander but when you get to the
actual photos it says at the top it is a 55 Cruiser.
So I am really confused. Can you tell anything from
the serial number?
Where should I start on this thing? The floor or the
wiring? Maybe someone has a suggestion. Or maybe
someone wants it.
Al