So then the question becomes is the car worth anywhere near $35K when done? I'd say "probably" given what classic Mopars are going for. You would be in the ball park assuming everything works out and the car is nice. The main issue would be is that the mid 70's cars are not really in their own at the moment, will probably be at some point but currently not so much. The 71/72's are coming on but they like all of the classic cars are fighting a battle of attrition and interest. The potential buyer pool is not getting much larger, yes there is still interest and there is some crazy money floating around the auctions but they are more of a anomaly than a trend. The truly unique and rare cars will continue to command good money which has a trickle down effect.
This car looks to be F8 green or close to that, I do not think that was a real common color back in 73 (could be wrong but I have never seen one). If you do the car well and it presents almost stock or better said a "what could have been" type build it should command some decent money, not enough to retire on a beach on but perhaps at least break even.
The problem you will have is that these cars are never what you think, if there is a little rust then there is more you can't see. Electrical issues are always a problem unless the car is exceptionally well preserved or the harness replaced so expect to spend some quality time there if nothing more than cleaning up the various harnesses.
They are great cars, look awesome and are fun to drive so I'd say jump on it.