If you have the option to go with the 68 gasket and trim go for it. There was a reason chrysler only used the lockstrip trim for one year in 67, it sucks! I put a new one on last year and it looks great, but it was a hassle. If you want some 67 NOS trim follow this Ebay link.
http://cgi.ebay.com/ebaymotors/1967...ptZMotorsQ5fCarQ5fTruckQ5fPartsQ5fAccessories
This is the set I bought. It is the trim you see in the picture. Good luck!
