It's so out of the ordinary and uncustomary that you will likely see continuing opposition. Personally, I'd pick somebody within reasonable driving distance, own most of the parts initially, and then fund it in increments as progress and labor are tendered. Tell them you want reasonable expectations up front due to you past experiences. Do your research and find recent references.
When Pettis Performance built my engine it had an expected finish date, horsepower and torque slot, and listed every single cost and part. I funded it three times I believe. He did finish it on time.
You're making that car way to expensive and nice to drive. That's my opinion.
