Mopar newbie with 65 V8 Barracuda

Welcome to FABO! The emblems missing would either be the standard V8 emblems or if your car happens to be a Formula S car there were round emblems up front near the headlight which say Formula S. Usable tail light lenses can occasionally be found on E-bay or reproductions, as mentioned above, from Rick @ Laysons. The mirror should look like this one. (not suggesting this one - just an example) http://cgi.ebay.com/ebaymotors/Mopa...r_Truck_Parts_Accessories&hash=item48413b6ba1
If you search I think there are reproductions of the passenger non-remote available too.

Again, Welcome and enjoy your car!