Faded to orange, red paint restore

[motorbreath]

Hi there, I've searched high and low but not come up with the answer I was after so thought Id ask you lovely bunch of PHers :-)

I'm looking at buying an old 80s 944 porka which should be in guards red, but due to uv exposure it's turned an orange colour.

I have experience with getting red paint back up to a nice deep shine before from an mx5 where the paint had 'matted' rather than lost its original colour.

My question is has any one ever tried to restore single coat (no clear coat) paint which has lost its original colour? From looking at some pictures of the car it is shiny, but just an orangey colour. I have a feeling that it would of lost its deep red colour even if I try to restore it to its former glory.

Many thanks

Al