If you don't have a contractor, shop around for the hardware (appliances, counters, flooring, etc..) to get an idea of the material costs then add in labor of hourly rates for the install.

I am bringing a single-family property located at 1360 Meadowood Dr, Hixson, TN, to the table and seeking a partnership to provide labor, materials, and an upfront investment of $40,000.

I would not be good at either of those, but that's probably where I would start researching if I had your skill set.Folks have been talking about 3d printers.  3d printed materials are inherently weaker than conventional methods.  

This is because you need to show material participation.

Most of these guys out there want to do "cost plus" contracts so that you're responsible for all the labor and material costs and they just tack on their 18 to 20% on top. 

Do you plan on project managing/picking up materials/etc or hiring a GC/PM to do it all?

Hadn't really considered other building structures/materials, so will need to do some research on cost for materials that still align with the vision, look, and feel.

They charge what plumbers charge for labor and material to replace plumbing.

I utilized (and maxed out) my credit cards to afford the materials necessary to renovate the apartments (I know bad move) therefore I cannot acquire a loan of any sort to fund the initial funds necessary to acquire a hard money or DSCR or rehab loan.

Curious where everyone sources their material for flips/brrrs?