Re shelling would de value the car. The v6 shells are strengthened, you can now buy the strengthening bits but its difficult to fit them without noticing, wings off too do the inner front turret ones, also a laser shell will have rear towing eye, locks in doors and if its a 1986 laser side repeaters, can also get around these but a lot of work. Keeping the original shell will help hold the cars value.
Doors aint too expensive but bonnets are hard to find, id buy the bonnet look else where for the doors at that price.