Working Dustbowl vmf anyone?

Hey, I've been wanting to work on dustbowl some, but I have run into the dreaded invalid solid error. And I mean the one where the older builds of source sdk don't recognize it, and therefore can't fix it, and when copying just the entities into a different map file won't work because that map file gets the invalid solid error. Even the original valve vmf won't load for me.

So, I was wondering if anyone has a vmf of dustbowl that they can actually load. Alternatively, if anyone knows yet another way to circumvent the invalid solid error that would be great.