well, an advantage would be just hook up to back of pickup and pull out when the lava comes!
As for CCR's & realitors yes you... love to scare people with CCR BS. That's what it is BS. Don't believe me?
Take a look at this...
http://www.leilaniestates.org/Covenants.htm
3. GARAGE: Every residence shall have a minimum of a 2-car garage or a 2-car carport, which shall be considered as part of the residence.
4. MINIMUM SIZE: No residence shall be constructed which contains less than 800 square feet of livable ground floor space, exclusive of porches, lanai, and garage.
Now go to your google/bing maps of your choice. Check out the sat views. Half don't have 2 car garage's or carports. It's obvious that some are not 800 sq ft. I even see yurts there as well. Google Street view is available though out the entire area.
Reality check is, as long as your not an ass hole, Example broken down cars in your yard, school bus's chickens and pigs, you get the point, I'm pretty sure you can build whatever you wanted on your lot.
Just because you got a permit with an 800 sqft home and a garage... No where does it say you can't live in your garage for 5 years while constructing your home. Maybe the permits would not be valid anymore but people do what they are going to do ccr's or not. That's the reality of hawaii is seems.
I'm not just picking on leilaniestates but go to all most any subdivision with CCR's in puna and do a sat view and you will find the same thing. So... No one cares it seems. I mean, I'm all for CCR's I think they are a good thing... But where do you really draw the line?
Here's John's new neighbor...
http://www.youtube.com/watch?v=LmR3kx660gw
LOL!