Most states allow you to hire your own adjustor to come up with your own damage amount and then argue with the insurance company about.The insurance company will want to see the signed lease, proof of funds the tenant paid and confirmation the utilities were on and preferably in the tenant's name.

As you and I know, a quad would be sold typically to an investor. 

Typically when you see "cash only" the agent doesn't believe the property can pass a home inspection which isn't relevant for construction loans in most instances and there are plenty of banks, hard money lenders etc. who offer construction financing on distressed buildings.

Typically looking for max ARV at or below 65%

I would definitely encourage to utilize all the resources that Bigger Pockets has to offer. 

The dated cabins typically need more help than say brand new construction which now are coming with pools and other amenities built in. 

Typically real estate is long term, has tax write off advantages and you can borrow money tax free to invest in other opportunities.

The average company only survives for ten years, while even large companies typically last just 18 years.

And I would find a decent job to utilize to help get traditional lending with.

Giving them a laundry list of items will typically just overwhelm them and create more confusion instead of giving them a smaller step process to get more confidence to get the ball rolling and then they can get into the weeds on their state when they get the contractors out there, have local bids come in, and dial in their plan.