Is this a good fix n flip opportunity?

[Chris Snow]

Looking to purchase a house seller finance for $160,000 @ 7.5% interest rate, 18% down.  Monthly payment comes to $917,  plus another $350 for taxes and insurance so ~$1280/month due to the seller.

Using a private money lender to fund the deal, borrowing ~$130,000 @ 10% interest rate, interest only, principal + interest paid as a balloon after completion  or 12 months.

House is a 3br/1ba 950sqft. near a university. Has a unique garage that is open air, but  roofed and on the same slab as the  rest of the house.  Plan is to wall it off and convert to a 4br/2ba,  update existing bath and kitchen, new floors,  interior and exterior  paint. Estimating ~$90,000 project cost. 

Comps that have sold in the last 6-12 months:

3br/1ba 1201 sqft - $275,000 4/1/24

3br/2ba 1252 sqft - $300,000  10/31/23

3br/2ba 1470 sqft - $340,000 9/6/24

4br/2ba 1518 sqft - $289,000 8/13/24

Goal  is to  complete flip in  under 9 months. Would  you  do this  deal?