1st time House Hack

[Peter Giokas]

Hey everyone, I am looking to buy this 3-unit property. I plan on using an FHA loan and living in the cheapest unit. The property is listed for $625,000 and I have provided the rent roll & property tax.

Unit 1: 2Bd 1 Br: $1825
Unit 2: 1Bd 1BR: $1475
Unit 3: 1Bd 1Br: I will Occupy
Property Taxes: $8,000

I have about $75k sitting in the bank. I plan on putting about $40-50k (6-8%) as a down payment. I will need to pay about $300-$400 out of pocket every month. Should I put roughly $25-32k (4-5%) as a down payment and pay 400-550$ out of my pocket every month? 

After 1 year, I do plan on moving out and renting all 3 units to cash flow. Should I be putting less of a monthly payment? Or should I be putting more and rush into refinancing into a conventional loan? (to get rid on mortgage insurance)? 

What are some other things I should keep in mind or take into consideration? Is this a good deal?