I had a full interior but it was either scratched/cracked or covered in tan velour. Your price of $3000 with everything is great! Take it and run.
This is parts alone. I had an estimate of $175 to do the headliner and $500 to recover the seats but I ended up doing those on my own. Also, if you have a standard interior the door panels will be about 1/2 or 1/3 of the cost of the deluxe panels.

Here is a breakdown of most of my costs: total about $2750
Gauges: 160
console: 379.95
gauge cluster: 40
shifter: 150
carpet: 110
front door panels: 400
rear door panels 200
dash pad: $300 off ebay
package tray:40
dash bezels: 40
headliner: 60
Seat covers: 330
misc seat pieces: 30
steering wheel 100
radio: 260
speakers 150