I would like this number to be lower since it's going to cost $120k up front for down payment and closing costs.

@Moshe H.No, not all the time, but the low contributors do not wish to lose it. 

I’m estimating renovation costs at around $150,000.

Make sure your rehab is "renter" cost rehab. etc. 

The long-term moves are to get a concession to buy down the rate for good (not a 2-1 or 3-1 buy down), it's a smaller number (i.e. .25% or .5% decrease on the rate), and getting their full closing costs covered is money out of their pocket today they'll be saving that could be huge to give the buyer more money for repairs and/or furniture along with just life expenses. 

You should factor in time value of money and opportunity cost.  

I blindly invested in an overpriced 3BD SFH in Cahokia Heights, IL April 2024 and have been carrying costs since then!

Most sellers are going to want 20-25% down as it’s going to cost them 10% to sell.

Using simple numbers, assume I want to purchase a $100,000 property using crypto as collateral:- I pay the closing costs with cash- I put down 10% down payment with cash ($10,000) - I utilize a crypto mortgage for the remaining 90% ($90,000) This way, I still keep my crypto and I have a property, both of which may accrue in value over the long-term.

I would strongly consider building equity to make a stronger down payment and further decrease your monthly cost.