These are in no particular order I suppose but all good items to look at when you are trying to understand a market well (especially for the first time!)

Proper's quote came in 3x as much as State Farm's (although we could probably get that number down if I go item by item to remove a bunch of unnecessary items).

The land survey, but then you dissect into three categories.Are you meaning just any other Due Diligence items/concerns?

Add the price to the menu items.  

I would want to know if there was any equity capture and cash-on-cash returns after rehab.

It does not need to rain nearby to get a flash flood down a wash, that is why hiking slot canyons requires a knowledgeable permitted guide (definitely a bucket list item). 

As well as an owners portal in Buildertrend to capture all finances and scheduling updates.

Included in the price of this estimate is expanding a smaller bathroom into the existing footprint of the home, a tile shower with frameless glass shower enclosure, a freestanding soaker tub, a stone countertop, and a separate water closet.Primary additionComing in at one of the most expensive things on this list, a primary addition with midrange items costs homeowners an estimated $156,000 and recoups only 31% at closing time.Bottom line- only do what you need to do to get the best 'bang out of your buck'.

The interest rate is just another line item in your analysis, you buy and invest accordingly. 

Review your budgeting and projections to ensure you have a line item for major repairs.