1968 firebird vin issue

[68firechicken]

I purchased a firebird off of ebay, and didnt think to ask what the vin number was before i had bought it. After looking at it the vin tag had been pryed from the dash. So I went to look on the subframe, and after i actually looked close at it, my subframe is from a 2nd gen pontiac, also with no vin tag. It came with no title only bill of sale. I realize this was a rookie mistake, but is there anything I can do with this car or just junk it? Keep in mind its just a project car in need of everything!