Windshield Wiper Conversion

[Superhart]

I bought a 1930 5-window coupe street rod, Chevy powered, with manual operated windshield wiper. The windshield does tilt outward. I would like to convert the manual wiper setup to an original type electric wiper. I cannot seem to find any info on such a conversion. I would appreciate hearing from anyone who has done this conversion. I needed a replacement wiper blade for the manual unit but every place I checked only list vacuum or electric wiper blades. My blade is 9.5” long.