Thing is CJ, it's cost you nearly 7K but you'd be lucky to get half that if you break it for parts at the moment, people haven't got the money to spend 1k on an interior and then there's the amount of time it'll take to dismantle, sell, pack and store the parts that don't shift, I know!
Death rattle is only a minor issue as stupid as that sounds, there's no need to strip the top end so you're not be needing a gasket kit, repair it mate, you know it's the right thing to do and at least you'll have a complete car to sell to recoup some losses if you don't want to keep it.
Crank £250
Shells £90
Remove, rebuild and refit engine £800-1200 depending on who does it.
Reading that a Plus hasn't been broken for parts and you're back driving it again......£ priceless