You'll have a slight loss each month on average. I'd sell and take the 75k.
I think you'll probably see more like 85k (selling costs should be about 8%).. do you have a large capital gain on it?
You aren't calculating in your expenses properly (as most new people don't), turnover costs, collection loss, maintenance (5% vacancy and 5% maintenance? what about long term capital repairs?), not paying yourself for managing it (whee, "free" job that you may hate).
I'd estimate you'll net a loss of 50-100 each month (median month you'll net $450.. then when it's vacant you'll lose 1300, then when big repairs hit you'll lose money, etc. - making your average month slightly negative.)
Unless you want a project (where you do the management and repairs yourself for free) to eke out some extra money as a side job, I'd lean towards selling.
All that said, it's not terrible - it's close to break even and the tenant pays down the mortgage for you. It'll probably come down to your inclinations to be a landlord.
To give it another perspective, I wouldn't buy that property as a real estate investor (put down 75-85k to break even or slight loss on cash flow). If you have a desire for rental property I'd sell it and move it to a more profitable investment. You can easily buy a turn-key brand new (built in 2013) duplex that grosses 2700+ rent (instead of 1700) for that same 75-80k downpayment, cash flows you way more, and is managed for you, so takes no work.