I'm using the BRRR calculator to analyze a few opportunities. 

But don't take my word for it; do the calculations for yourself;4.

You need to be careful and make sure you're not including the credit card/paypal payments when you're calculating the amount to use in the 1099-NEC/MISC.

Also if it is intended to possibly be a rental you should calculate the end result of the acquisition, the debt service, the rehab, etc and pretend to get a loan to refinance. then look at the potential rent to offset that monthly cost and see if it would cash flow.

Here's a bit more in detail about how rates are calculated for DSCR loans:1.

If there’s no lease, the appraiser will determine the rent to calculate the DSCR.  

Sometimes they still have the garage door and drywalled the inside... meaning that they did not do a foundation on the garage door line : they did not use a deputy inspector, they did not use the appropriate hold downs (metals) for structural integrity, they did not use the right calculations for framing (ie rafters for ceilings ) that are often changed in a garage conversion... did not use proper headers for windows and doors... etc etc I have been faced with these a lot when representing the buyer and I would : 1.

This way you can calculate how much you can realistically invest and keep for reserves.

My guess is that it won’t actually take you a lot more time, just the extra fees, but those should be accounted for in your profit calculations 

Quote from @Jake Baker: @Andrew Syrios I looked at my last five flips to calculate the rehab cost overrun; the average was 15%.