Advice on ‘74 Duster

THis must be an exciting time for you...Feeling anxious and antsy to move on it. I get that way when I want to buy some cool car, even a parts car!
I am buying a wrecked 1970 Charger that has been sitting at least 10 years, maybe as long as 15.It is a low trim level XH29 car.
I bought my first one in 2000 for $1700 and it ran and drove great. It is an XP 29, a Charger 500. THIS recent one, just over 19 years later is $5000 and neither runs nor drives. The values on these cars had just exploded.
First pictures are of my XP car:
1I.JPG 1M.JPG 00000003 (2).JPG D2A.JPG