Factory race car?

My pops has been trying to buy this car for years. He would stop by the house and ask the fella to sell it and his reply was always no. Well this time the guy said yes.

It is supposed to be a factory race car but we're not sure. It has lexan windows, no bumpers or tail lights. The trunk lid is just a floppy skin. The doors are just skin. The PO says it's an acid dipped body.

We're pretty sure it was a 426 car but there's no engine in the car.

Sorry for the bad pic but this is all I got till we pick up the car after work tomorrow.
imagejpeg_0_zpsrloyc50c.jpg

If anyone has any info on the car or what we should look at let me know and I'll post more pics when we pick up the car.

Our plan is to just wash the car and put it back like it would have been in the 60s.
The body is crazy straight and the paint under the mold looks good.