I say do it. T-tops can usually fetch a decent coin, you can sell random interior panels and switches on e-bay for 10-15 bucks a pop (minimum), diff is worth a little bit of money, random engine parts (valve covers, plenum cover, etc) can usually be sold for around 20 bucks a piece. Body panels and glass can also be sold for some decent money. Then after all is said and done, fill the car with a bunch of scrap metal you find lying around and drag it to the metal recycler to make 150 bucks back.