The wild west is in the $1,000,000 to $3,000,000 range where there are hundreds of variations.

No one can predict costs and values that close and small variations will kill you.

Do not nickel and dime tax variations.

Watch the market place forums too, it's the "Count Down To Launch" LOL.There are several types of conventional options, the "full credit", "step up", "financed option" (actually 2 ways), "set up option" "declining credit option"  each having acceptable variations and the American Option (a favorite of the gurus) and the European Option described, both may employ aspects of the different types. 

That includes running the numbers with lots of variation; don't assume just one number. 

The heat pump will be more efficient than electric heat, and not susceptible to variations in fuel prices.  

Performing some variation of a live-in-flip is certainly the way to go when you start out.

This could be a variation on the current con game of someone leasing out a vacant house that doesn't belong to them, especially at a sub-market price that blinds victims to the red flags.

Extreme variations from HUD can be challenged.

I know there is the possibility of size variations between manufacturers; are there ways to adjust for minor size differences when setting on a perimeter foundation?