1988 Toyota pickup (blown head gasket)

I overheated it a few years back and blew the head gasket and was going to fix it last year but one of the head bolts snapped off so I gave up. The thing is pretty rusty and well used but the transmission, front differential, and rear axle are all in good condition as far as I can tell. Not sure if the truck is worth fixing but definitely would be good for parts.