How do you feel about after market body panels?

[cincytrucktp]

I think I may have found a truck, but the owner told me that only the frame, engine, trans, cab, doors and hood are original, everything else is after market including all the glass. I know you can build these trucks with very little from an original truck. Anyway if you knew the truck was 60% built using after market parts would that keep you from buying the truck? And why?
I've heard the after market panels are junk and don't fit well, is that true or are there nice trucks out there that using almost all after market panels? Can you tell a truck that uses after market panels just by looking at them?
I've heard this will hurt resale also.