I'm going to sell it when we start, we have pushing $30k in equity, and we also have a paid off home valued at $195k, so HELOC is possible if we decide to go that route, however I'd like to avoid it unless something too good comes along we must jump on lol.

NOI with new mortgage payment of $319/mo would be $173/mo (+~$85/mo in equity).We do plan on managing our self so I did not include that in the numbers.

I see my fist mistake with the 80k down  my loan would only be for 320k but Ill still only take out 100k in equity.

We'll be focusing our investments here for the time being, and I would be very surprised not to double our money or more in equity within 8-10 years.

The resource, at least the resource which most prominently jumps to mind for you in deciding how best to pay these down, is your $100,000 in equity that you could get a HELOC on. 

I bought it in 2013 as a foreclosure and have about 400,000 in equity in the house and am positive 1000 dollars in rent per month.

We will be living in it and paying the rent on our own and selling it in the near future, we’ve narrowed our search down to 2 homes and are ready to pull the trigger, we’d just like some opinions on which home has the higher walk-in equity.

About $350 after fees for a SFR with about $50k in equity. 

BUT I did start out with under $20k and in almost 2 years I have 4 houses with about $120k in equity in total.

A home equity line of credit (HELOC) sort of has the money available to you in reserve, but you only pay what you take out.As an example, lets say you have 50K in equity available to take out.