Agreed upon value. Need help deciding

[kevmic28]

I am going back and forth with my insurance company on the value of my truck. Its a 70 GMC with a flat bed. 350 bored 60 over. Vintage air ac, 700r4, blazer tank under the bed, added power brakes, swaybar and all body work has been completed. Just needs paint and interior finished.
I paid 1000 for the truck, 1800 for the engine, 1000 for the transmission, plus at least another 1000 for body work and other stuff I have done to it.

Insurance is saying its only worth 1500. I know Ill never get what I have in it but I want to be able to replace it if its ever totalled.