The `82 is the perfect C3 for me - the most technology, creature comforts, relative reliability, eventual collectibility, etc. But, it has some known issues to be aware of but none of them are show stoppers by any stretch. For instance, it was the first year for electric fuel pumps in the C3. Replace it. Just do it. It is a DIY-level job which you need to be ready to enjoy learning/continually monitoring and repairing as a C3 owner. Since you'll have the first C3 with electronic fuel injection, use injector cleaner. The power door lock actuators and door lock switches in the door panel fail after 35 years and need to be replaced. The C3 parts supplier partners have a tremendous inventory of parts - your family will never wonder what to get you for a birthday, Christmas gift, ever again - there is always something you want, like a kid. You will love your `82, if you buy the right one it is a pure joy. If you post pictures of your prospective `82 throughout, I will gladly tell you what is original and what is not and anything else to look for that I can think of while looking at the pictures. The C3 forums will help a lot. Here is a list to get you started, and some forums have a specific `82 Crossfire segment ("Sticky").
Hope this helps.
Dave V.
