You can get a clip in good condition for $2500-$3000. If you can do the majority of the grunt work yourself you could come in for under $4000, provided everything goes smoothly.
1989 240SX Fastback. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1995 300ZX Twin Turbo Warning: Objects in mirror aren't as fast as they thought they were.