I would start now by trying to get on as many wholesaler and broker email lists as possible for deal flow, and possibly getting licensed to gain access to the MLS, at the very least for comp analysis.

If you are talking auction properties, or bank-owned or short sale properties, often times there will be additional restrictions on the purchase, such as a 30 day period before you can re-sell, non-assignment, or non-redemption (selling/renting the property back to the original distressed homeowner).  

Perks such as, access the MLS and being able to pull your own comps, and even saving some on agent fees. 

Let Go and Let The VA Work - If you're going to spend the money to hire a VA, get over yourself and give them all the training and access and info they need to do their job.

We’re trying to figure out how we can get access to capital that we can use to purchase more real estate outside of the solo 401k without pulling money out of the 401k and paying taxes.

However, I am considering taking on a business partner(s) because of access to more money and expertise.  

QB offers a way for accountants to access your stuff and it is fantastic at tax time.    

Be aware that the new tax code restricts the use of the money to real estate related uses, like renovation, buying other real estates, etc.

Having a construction loan will increase your down payment, but this will give you greater access to additional funds that don't need to come out of pocket for the rehab.

The land is wide enough to add an easement and paved road access to the new lots.