it looks like a NON turbo car. and a ROUGH one at that. the no interior pics tells me the jambs are probably rusty witch is a common problem on these cars.
IMO it basically a standard 2.2 charger with some stickers and a little bling. getting it driving you will probably have to replace the Shelby specific suspension stuff that made it a Shelby. once you get it in driving condition it will be a regular Charger with stickers and some minor bling..
depending on condition of interior i myself would have a hard time going over $1,500.. if the interior is in excellent shape, DOUBTFULL, i would go a little higher.