If it were actually all stick built onsite, “cheap” doesn’t necessarily mean linear runs of interior walls front to back.
That house actually has a litte effort expended on the front at least, not like the radically bland things I was talking about. If you’ve ever heard of Jim Walter Homes, these make JW look charming by comparison.
I’d hope they would be CBS, stick built structures don’t last long in Florida.
The front of the home is the only place they tried giving character to. The inside would be utterly bland, interior designers may enjoy the clean slate though.
I’d move the first floor master upstairs and put a 25’x30’ great room next to the kitchen and add a fireplace.