1968 Buick Lesabre

I am trying to get my window put back together I cant find any information on how the parts go back together . I have a 1968 Buick Lesabre 2 door convertible . I had a mechanic who took all the pieces apart and now I'm literally left to pick up the pieces with no help ....
The closest body service manual here is the 1966. Have a look at it, it would probably get most of your questions answered. CLICK HERE for the "Buick Body Service Manual".
I see some wiring information in the Chassis Manual on page 120-116.

I would not be surprised to find the Power Window relay on the inside of the firewall near the top, behind the heater ducting. Hope I am wrong:)