What is the value of my Mach 1?

Anyone have an idea of what the value of my Mach 1 would be? I'm selling it and would like to know what the value of it might be and what is the least amount of money I should accept for it. Is an H code 351C-2V FMX auto but has original 1970 4V heads and mainfold off another 1970 Mach 1. Interior fair, drivers side seat need recovered, cracks on dash. Body rough but is straight and in good shape. Is primered. I believe it is a #5 on value code. Has front and rear spoilers, fake hood scoop, runs and drives. Has p/s, p/b, front discs, 8 track, fold down rear seat, no shaker, rim blow horn, no ac, no magum 500 wheels, VIN ORO5H149087, few small rust holes on driver rear wheel well. Floor pans ok, all original sheet metal and glass. Also comes with a 70 coupe parts car that was hit in passenger door, has no motor or trans. Any input would be appreciated, thanks.