I think most of the $8k is for roads. Wells (shallow wells certainly) will go dry if an entire suburb is drawing on the spring. Sceptics... With enough houses, someone somewhere will have a stinky one, but these could probably work. I doubt most suburbanites wants one.

Power... IMO, we're just not there yet. Maybe close, but even most rural homes use central power.

There might be some stuff that can be imported, but without more info it's hard to know what matters.