Since you aren't going owner occupied, plan on at least 20% down payment.
Just doing a quick review, I would look at the numbers again. If it gross rents are $1600, apply the 50% rule, that gives you $800 to pay the mortgage with. Your mortgage P&I is $814, you are negative $14/month.
The 50% rule isn't hard and fast and it does vary by property type & area. In my area I generally end up at 45%, but I usually estimate at 52% when I am doing a quick analysis.
Other individual items to consider is lawn, pest, CAPEX (Capital items like roof, AC etc) maintenance. Don't discount management either. You will gain a lot of experience managing your self, however, if your situation changes and you need to place the property under management you want to make sure that it will still cash flow. Also, don't forget about vacancy, generally 8-10%. Will you also be paying any of the utilities in the building? I have to pay water on my 4-plex's since that's what the market demands.
Hope this helps. Best of luck.