I think Dam-It would make an awesome prophunt map. Small(ish) with multiple levels, 4 ways to get to the cp including the hole above it. Outside/inside spots, not cluttered so you could easily add the static props, you take trim the nowall a bit to allow access to the roofs..etc
That said, converting it would be a pain in the ass. And I only allow one pain in my ass....and that's when Marshii jams his big lubed up throbbing...pulsating...hard white British....
...rectal thermometer up my bottom because Marshii is a good friend who takes care of people when they are sick.