Get lots of pics of the striping and rubbings to document them. You could send the info to one of the aftermarket graphics places so that they could be re-popped.
Never saw a "true spirit". Amazes me how many decal "special editions" were done for the 70's Dodge trucks.
If you can weld/ fabricate, you can fix it...or just about anything is it comes down to it.
The key is if it is complete...Swepty parts are harder and harder to find.