A Boss 429 would be a cake walk to finding parts for compared to my Dan Gurney Special....last I saw a fender for sale it was $2500...but with only 353 total cars built with the long nose you either play with the big dogs or stay on the porch. Fortunately I don't need a fender but with rare cars you gotta pay to play unfortunately. Try to find a pair of NOS 6.5 Liter fender emblems for a '68 X code XR7 cougar....unobtainium....
I just picked up a '69 428 Cobra Jet Mach 1 project....talk about some "spensive" parts needed.....
The sad thing is I remember the days when a friend of mine bought a Boss 9 for $7500...I think he still has it... even 10 years ago he paid $1200 or more for the correct carb for it....but it's a Boss 9 and not everyone has one of those sitting around
Modern Muscle is getting the same way.....$50K plus for a '93 Cobra R?!?