May as well buy a restored Mopar.....

The Demon you see as my avatar cost me $12000 to purchase initially. I added up all my receipts this morning and I figure I have around $20k in it now, so had I got it for $2k like you did, I'd be in it for $10k, so your numbers are totally legit. You purchased it right for sure!
This is 100% not a knock against you or the Duster guy or anyone else for that matter but just to not confuse people 8 or 9 thousand dollars spent on a reasonably decent start of a classic Mopar will result in a average to better than average home build, which is perfectly fine in a lot of cases and probably would get the overwhelming vote of agreement from feedback off of here but if a person was really looking to actually restore the car and redo,rebuild,restore everything on it then 8-9k will never ever come close to making that happen.........again i'm not knocking your car or anyone else's either as to be honest I haven't seen them in person but what I do know is that if you want them looking like they did when they were new and or even better in some instances that kind of money will not even scratch the surface. Enjoy your car, I own a 71 Demon also and like the color you have on yours.