Real Estate is a price per square foot industry. 

This might not make a huge impact, but the 150,000 sq foot Amazon delivery station recently constructed in Toledo is also apparently all set to go.

A 401k loan could be a good tool here, but be aware that your lender will have to factor your monthly payment obligation on the loan into your DTI (debt to income calculation) when they determine how large of a loan you can getSo you may pull out say, 10k, 20k, 30k etc, to have more of a downpayment fund available, but make sure you aren't shooting yourself in the foot by then limiting how large of a loan you can get due to DTI increasing, which would make the 401k loan/money a waste to take outI'd recommend getting on the phone with your lender and asking them about this.

Cost should be based on a per sheet cost , or square foot cost , or by the linear foot.It is impossible to know exactly how much bad roof decking there is until the roof is tore off.

I was studying what houses were selling for per a square foot and looking for houses that were drastically lower than what I was seeing.

What modular home company do you use and what price do you pay per sq foot (with and without installation) in California or free delivery to CA? 

I'd like to just "get my foot in the door" and if it's possible to put down less on our first deal - that'd be great!

We do not know when it will change.Planning under these conditions is highly problematic and may backfire if you guess wrong.Also, remember that most people in Congress, regardless of party affiliation, are wealthy business people and owners of real estate who are not interested in shooting themselves in the foot.

Came to find out that the GC never even stepped foot in the house.

Also, I'm starting a software corp for leverage my data mining skills and have been success in accessing public recorder of deeds data and am working on building a tool that will calculate ave/sq foot; tax assessed vs. sales; $/acre; etc per property type whether SFH or boating docks.