67 notch rear window

So, what is everyone doing to replicate the 67 style notch rear window? Can I use OG weatherstrip and mod front lock strip to fit contours of rear? Or is the 68/69 trim with clips my only option? I would rather not drill more holes, but if need be. Not that that trim is easy to find anywho. Also don’t want to hack up a few hundred bucks worth of lock strip to find out