I'm sure there is a lot of interest in the B&M, the two Vekomas, and the flats. Any of those three coasters would be a welcome addition to a park looking to step into the world of "mega-loopers" or needing to diversify their family coaster selections. The other two coasters seem like they would be more trouble than they are worth having, and they really weren't that great for their intended purposes. If it's not just parks interested in the rides, used ride dealers are probably foaming at the mouth as well. Of course time is an issue, and these rides are losing value each day they sit idle. It's true that any machinery should be operated regularly in addition to general upkeep maintenance, but it seems like whoever is in charge of them is at least keeping them from rotting away completely. Good thing Myrtle Beach is spared from the harsh winters which also helps curb the effects of weathering.
Personally, I don't see this place ever operating as a park, amusement or theme, ever again. Sell off the assets, and chalk it up as a learning experience.