Curtis Sleeper and his cave-dwelling family appear to have found a way to remain in their one-of-kind 15,000 square foot home inside a Festus, Mo., cave.

Associated Press reports that a 15-year low-interest mortgage contract has been offered to help the Sleeper’s extend their stay indefinitely, which is of course cause for celebration.

Here’s a snip from Mr. Sleeper on the positive development:

“We’re excited about it. We’re throwing a party at a friend’s cave…. It’s certainly been almost life changing — except I’m keeping my cave, so not that life changing. I’d love to hear the end of the story read, ‘and they lived happily ever after.’”

It sounds like it will. And he more than likely has himself to thank for it after an impressive local grassroots public relations effort turned into a major national story.

Indeed, his initial listing on eBay to sell the home, which is situated on a scenic three-acre lot, at a starting bid of $300,000, as well as his heartfelt story behind its creation, was an Internet and cable news sensation.

For more details on the amenities and all the blood, sweat and tears that went into building “Cave House” be sure to check out Sleeper’s very detailed Web site right here. And to check out the eBay listing go here.

But be sure to do it fast before the Sleeper’s spelunk back into the cozy confines of their cave and return to relative obscurity.