Windshield cowl replacement 1967 912

[RCK67]

I have a 1967 912 and I am in the process of restoring. The rain gutter of the front windshield is completely rotted and needs to be replaced so I purchased the one from Restoration Design and its for 74-89 911's. It's overall shape is the same but the wiper openings are smaller. So... can I just use my wipers mechanism as is or can I just purchase a newer 74-89 version and just fit it in? Someone said the wiring connection might be different. But I am not building this car as a show car its going to be an outlaw/renegade so factory correct is not a big deal.

[peter leinberge]

No matter what you end up with, show car, outlaw or "driver quality restoration", you won't want water on your knees.
As you can tell, this is a vulnerable area on a Porsche that rots easily.
If possible post pics of the area in question, you might get more / better response and direction.