'36 electric wiper motors (left and right)

[flatfoota37]

I want to install electric wiper motors on my '36, but I do not want to cut holes in the header panel. Are they available to work in my car? I've read that two won't work because the wipers hit each other. I do have vacuum wipers, but don't work too good. I do not have a vacuum box. Maybe that is a better way to go. Not experience enough to know how to install a vacuum bottle or box.??