1980 chevy wagon rod

I have a 1980 chevy malibu wagon with a 454 bb and b&m supercharger and holley 4 barrel on it with auto trans. Needs paint and interior upholstery. No major rust. Runs. Engine from truck with original truck heads and exhaust manifolds. Flow master exhaust with duals. Runs good. Car was brother's and plan was for he and I to complete street rod transformation. Has nice Z28 wheels, but rubber is old. Limited slip differential. Planned to be a street rod. Any suggestions as to what it is worth? I have been looking at it for 5 years and can not get traction. Sentimental attachment, but I am not the mechanic my bother was. I miss him and his skills. Help!!!