In my research the Specialty Power Windows/Wipers seemed to be the most robust and reliable option. I have a set on the shelf waiting to be installed, they look to be of good quality but I can't yet speak to function.

They're also quite flexible in mounting and installing in tight or crowded spaces, the motor can be a good distance from the wipers. It's a push pull cable in an aluminum tube.

Grigg

•1951 GMC 250 in the Project Journals
•1948 Chevrolet 6400 - Detroit Diesel 4-53T - Roadranger 10 speed overdrive - 4 wheel disc brakes
•1952 Chevrolet 3800 pickup
---All pictures---
"First, get a clear notion of what you desire to accomplish, and then in all probability you will succeed in doing it..." -Henry Maudslay-