Without trying to make all the “dimples” the frame rail build would be a lot easier. I had planned to make another chassis using ’32 rails for a highboy A. After making the chassis for the roadster I got lazy and thought about just boxing the original frame. I think your mock up looks prefect. I could see making contoured rails from the firewall up and tying that to something simple and unseen from there back. If I ever get to mine I now think it will be channeled.
That dash should work quite well (with just a little trimming).
