new "A" builder here

[PetesPonies]

I purchased a Model A rolling chassis. First , I wanted to see what year it was. I found the serial number, but it seems one digit is missing. There are six digits but got by other things about the frame, there should be seven. Best we have figured it may be a January '31 frame. I am missing brackets from this chassis. I want to put a pickup body on it. If anyone can help with body mounting brackets , I'm interested. I'm new to As, but not car restoration.