Storage pods could be a good revenue addition, particularly the 8-plex has minimal storage. 

What is the best resource for a possible "construction loan" type mortgage to rehab the triplex with and fix the lot/landscaping issues for minimal out of pocket expense? 

Pulled 75% LTV out leaving me with about $5K in the dealRenting for $1800/month with cash flow of about $350 after accounting for about 30% in ExpensesI'm self managing and both Maint and Cap ex should be minimal over next couple of years due to extent of rehab.

That's a pretty good deal because you can minimize your expenses while on limited income while also learning how to manage properties.In the meantime, you should definitely link up with your local Real Estate Investors Association meetup as well as any BiggerPockets meetup.

With 4 people you should absolutely hammer those down and try to minimize the notion of splitting 4 ways equally and figure out the most logically split based on interest and input.

Other than that you would have minimal advantages on partnering with a builder.

Anyway you can minimize that is key.

Once the seller left I was able to do the minimal rehab the house needed and rent at market rate.

There's minimal to no other options for short term stay in town.

That said, a good TK provider's job is to put the odds in your favor... to maximize your rental return, and minimize your exposure in doing so.