You can go as low as $55k as long as the property can appraise for 75k or more 

This takes you out entirely.You could hold the funds in escrow, and have the title company release only to the window guy upon your approval.

From my experience, HD Supply Home Improvement Solutions was considerably inexpensive compared to anywhere, even Lowes and Home Depot.

@Mohit Arora to gain some piece of mind in this same situation, I drafted a "Holding Deposit Agreement" document that is entered between the potential tenant and I.The purpose is to use the deposit to hold the rental until the lease signing and transition this Holding Deposit to a Security Deposit once the lease is signed and all other move-in funds are collected.You can message me privately and I can send you the doc I drafted.

Is there cities where a low cost is possible to qualify for a DSCR loan? 

I have the funds for a 3-4 month long VA cold calling campaign.

This decision is too important to trust an online calculator; making a tax forecast is not rocket science on this but the gut punch because your basis is so low is understandable.    

It's not a terrible strategy except you tend to end up with broke, desperate tenants because those with reasonable funds would prefer cheaper rent and a returnable deposit. 

We signed on August 17th, 2021, and I had the funds from the HELOC in my account on the 23rd.

This is typically due to a high principal and low median rent within the area or its remote and I believe it may be a struggle to find tenants.