Owner Builder Funding Help

[CHris Markle]

I am trying to do an owner builder construction project but am told no one does a loan without a GC. I was wondering what my options are? We own the land and will have completed plans ready to build in August. Loan amount would be $350-400K. We own a home with equity already but not enough to equal the project cost. We also plan on renting that home for more income.  

Thanks for any help.

We are building in Mesa, AZ.