All Classified forums require a Site Supporter subscription. It is only $25 per year and you can buy and sell whatever you like on the forum. To become a Site Supporter, go to Your Profile and select "Paid Subscriptions."
Well, I do have an '83 truck I could take that from BUT the motors are weak & one doesn't work. Maybe the switch??
When you perform the conversion, I strongly recommend integrating relays into your plan. Augmenting the factory wiring with relays results in a world of improvement and longer service life for the motors. See Wiring up power windows and door locks.