Without knowing comps or where the house is, it'd be hard to say if it's a good price or not, but you do meet the 1% rule on rent.
The seller could finance the home for 1-5 or however many years you can work out, at an agreed upon interest rate which will be higher than traditional bank financing, but not like private or hard money. The plan should be to refinance that into a traditional bank loan at some point.
The monthly payments you make to the seller will be based on how you amortize those payments. The longer the amortization (20-30 years) the higher the financing payment you make every month.
Using a 30 year amortization at 6% interest with 10% down, and 47% expenses, results in annual cash flow of $75. Doesn't seem so great.
Using the number of $750 in expenses per month gets you even worse cash flow, in the negatives.
Unless you know the place has below market rents and the leases expire soon, giving you the opportunity to increase rental income, you'd have to drive the price down a bit or come in with a nice down payment, with plans to refinance into a bank mortgage after 1-5 years.
Again, knowing comps and where the place is would help others in their responses. Hope my feedback is worthwhile!