Don Burke once bubbled...
The DIR guys in Europe seem to do a lot of sumps. There is a site out of The Netherlands with quite a bit on it. That might be a good source for information.
http://www.frogkick.nl/
Sorry but you couldn't get that equipment to most sumps forget about inside them.
Check out NEST or the CDG. Where is Duncan when you need him?
Could you imagine hauling double 104's through a mile or so of dry cave that requires vertical rope work? I've seen guys traverse multiple sumps interparsed with thousands of feet of dry cave in place where you couldn't get a set of doubles without a helo. LOL Of course if you got them there you still couldn't fit them through the restrictions.
There are worthy cave systems all over this country and others being totally ignored by the internet.