Steve,
I have a 63 Tradewind that I am in the process of disassembling to use as
parts for several other trailers I own. The remainder will be sold at some
point this spring. I'm not sure yet if we are going to use the black tank
out of it but I can take photos of the disassembly process for you. I have
removed the toilet already and it is possible to look straight through the
black tank to the ground. I believe this is normal. If you need any other
photos or details email me off list.
Colin