That's a cute solution but not based on reality. 

A new/improved road here will also benefit them as well if you are bringing more customers to their shopping center and providing more access points for traffic flow in/out. 

Let's have a phone call about what exactly you are looking for, and then based on that I can help you.

I'm providing 125k, so based on the other numbers I guess that's whole purchase and construction.

My wife and I are considering buying a plot of land and either building a custom build on it or putting a manufactured or modular home on it.

While this option may require permits for the renovation work, it may be a simpler process compared to replacing the entire home.Ultimately, the decision to replace or renovate the mobile home will depend on your budget, timeline, desired level of customization, and future resale value.

I'm thinking of managing myself and looking for a fee based advisor who is versed in tax/management.

I am based in Greater Philadelphia region and worked on a deal the owner sold 75K sq ft self storage and kept 20K sq ft of contractor specific self storage.

After visiting the property, I decided not to offer based on what seemed to be many interior issues, a roof that’s seen better days, and more tenants living in the unit I was allowed to view than I was expecting for a 800 square foot space. 

You'll want to cover your bases legally and financially.