Capital Gains exclusion or 1031 exchange?

[Nicholas O'Kelly]

I'm in the military and bought a house in TN in January 2019 (2.5 years ago). In August of 2019, I received orders to move, so I only ended up living in the house for about 9 months. We rented the house out and will not be moving back to that location, so we will not ever live in residence for the 2 years required to be exempt from capital gains. We are now selling the house, and I want to reinvest over half of the gains into another rental property (or two). I make about $75K/year and will probably end up with around $70K after closing costs on the house.

My question is two parts, do I need to do a 1031, or is there another tax exclusion since I would never meet the residence exemption due to the military moving me? 

If I do need a 1031 exchange, can I do that for only part of the gains?

Thanks all.