Okay, just to clarify some things. First, there IS a negative carrier, as you can see in the photos! It has the SIXMA 35 mask installed at the moment. The unit has the 2 standard, rectangular condensers (they mount with the curved faces toward each other). There's also a SIVOCON 50 condenser for 35mm enlarging. I have a box with a sheet of SIVOGLA Anti-Newton Glass and SIVOPAR 35 glass. There are also two (2) SETOPLA 2839 lensboards (with M39 threads); the 50mm and 75mm lenses mount in these.
From what I've read, this was and still is a popular model! I'm doing 4x5 and 8x10 work, so don't really need it.