Use a blended rate calculator to see what is more cost efficient.

Adjusting the purchase price, budget, and offers can help you reach the break-even point.Many calculators overestimate cost assumptions or rental comps, which can be both beneficial and a hindrance.

Also, I personally wouldnt cash out refi right now just because the interest rates are high but thats just my opinion and it really just depends on the numbers if you want to make a calculated decision. 

Further, how do I calculate the business use percentage for a rental RV?

Start by thoroughly evaluating leads for profitability, calculating ARV (After Repair Value) based on comparable properties sold in the area within the past six months.

Floor Plan CreatorPlatform: AndroidFeatures:Allows you to create detailed 2D and 3D floor plans.Supports laser measurer input for accurate measurements.You can enter exterior walls, fix them in place, and add rooms within.Offers automatic calculations for perimeters, rooms, and walls.Bonus: Plans can be exported to various formats for further editing on Windows2.

BiggerPockets also has a calculator to analyze deals, and I highly recommend you start this as soon as possible, even if you are not ready to buy.

Key Market Movers and How to Track Rateshttps://www.biggerpockets.com/blog/2024-dscr-loan-rates-and-...How Do DSCR Lenders Calculate Your Interest Rate?

So, if I am a buyer, I will calculate that risk into it and will charge MORE for the risk.

@Drew Sygit Yeah I am seeing that in my calculations, thanks for all the advice!