As for the electric window.

I would find some pictures of the motor that is used on the windows for the BMW M3's and see if you can modify it to fit the pickup. Depending on how its designed you may be able to easily create a few pieces that will make it function on the trucks window.

I might look into it myself if i get time.



BTW
I went ahead and took a look at the design on the BMW and I think that if you can find a small electric motor that locks in place when not used, then you should easily be able to build a part that will connect to the window and allow it to open and close securely.

When i get off work (if i remember) I'll try to take a look at the framework around the rear side windows and see if there is enough room for a small motor, If there isn't and you can find a small enough motor you SHOULD be able to cut a small section out for the motor and then make a small housing for it so it looks clean.