Great, thanks for the advice all. All great info and your warnings are spot on. My dad is a builder/home inspector and I worked with him for several years (but primarily on the home inspection side) so I'm not going in as a complete tenderfoot. One of the options I'm considering is doing a modular build. My dad is a certified builder for several different factories so I can purchase without having to pay his profit margin (nice guy, eh?). If I go that route I should be able to build for about $100/sq ft. This also has the added benefit of eliminating much of the onsite sub work I'll need. Pretty much just plumbing and electrical for the final hookups. All the last finishings (bathroom tiles, landscaping, etc) I'll be doing myself. I've already scoped the entire approach from I-70 and access for the crane is great. Also makes permits way easier - all permits are secured at the factory, not onsite.

Now just to see if I can finance this damn thing.