American Family recently discontinued their multi-family coverage, leaving many property owners scrambling to find new providers.

There are too many factors to consider to just provide base rates for what you're asking. 

For on the ground evaluations, I rely on local contacts: agents, contractors, or even property inspectors to provide walkthrough videos and detailed feedback.

Just stating that waiting will also likely make the cost of what you want to buy go up if the last 98 years of real estate data provides the future direction.

I  have a detailed reply above that explains it and provides the code citation to read as well

I'm a Project Manager at an Architectural Firm specializing in Custom High-End Homes. 

However if you aren't doing mass scale, we definitely suggest letting the contractor handle material purchasing.As long as the client has all of the materials at the jobsite, place them where they go, they are all the correct type/fit and there are all of the misc parts (adapters/special hardware/etc) needed to do the install.

@Caleb Genry I am late to the party on this, but would greatly appreciate the spreadsheet/log if you are willing to provide it. 

It looks like you are doing an affordable build based on the cost but hard to say since you didnt provide info on the build itself such as square footage and finishes.

@Timothy Frazier  This will be tough as the HML will want a 1st position loan, but so will the other lender providing the rest of the funds.