It was filled with old clothes and items and had 3 separate ceilings.

It is easy to show that it is an ordinary, necessary and reasonable for investors.however, if you have no business(no rentals or no flips), then this item may potentially not be deductible.

To quote carpet you really should just have someone price it and charge that amount.As for holes, in my state nail holes are normal wear and tear, whereas anchors for heavier items like TVs are not.

Typically you provide a cost line item sheet, plans, specs, breakdowns.

How will you pay your carrying cost, any cash reserves?

These are all expensive items that add longevity to your property and increase its value.If all else fails, I would check with your lender to see if they have any other options. 

Meaning, the big ticket items that I am replacing are in complete disarray. 

Your basis is what carries over in the 1031. 

If that is the case, it doesn't matter how much it costs you to carry your property - that is what it will rent for.You can ask a real estate agent to pull rental comps for you or just look on Zillow, FB, CL, etc. for your own comps.

Or they'll price certain products at a loss *all the time* to get customers in the store to buy additional items.