Great to see such a forum/community up on the net that is dedicated to our 4th gen RR's! I have a 72 matching numbers RR (400 block) and live way out in New Zealand! Slowly getting all the panels in off ebay to NZ and sending it to the panelbeaters soon.
Here is a link of a 72 roadrunner built in New Zealand. He spent a lot of cash on it and is a very inspiring read. 10L v8

http://www.v8.co.nz/articles/1972-plymo ... fection-50
Enjoy!
Ash