I have looked at the Cambo Wide DS and RS but there does not seem to be any way to tilt, only shift.
Tilt really isn't required with the wide angles on these cameras, even for interior work. Practically, keeping a lens like a digitar 35 plane to the sensor in an accurate way is more important than anything else, so any mechanism introducing tilt is asking for the introduction of inaccuracy that would be more a hinderance than help.
I think tilt might be practical using live view on a digital back, but not otherwise. It would be essential to check sharpness at the edges when tilting to make sure that exactly what was required was happening.
I use 24XL, 35XL, 47XL and 72XL in interiors without tilt, but with Leica disto for calculating exact focus distance.
Other options include using Heliconfocus (a software solution for extreme depth of focus) if you need super sharpness everywhere.
Sorry to be a wet blanket, but you will be lucky to get something like this for $2000. I think I paid about 2.5 times that just for the 24XL. That was before the $ or £ tanked against the Euro. Still Ebay does work wonders sometimes, so I wish you luck.