2000 Pontiac Grand Prix ELECTRIC WINDOW MOTOR / REGULATOR R

I HAVE A GRAND PRIX 2000MY WITH DAMAGED CABLES ON THE REEL ATTACHED TO THE MOTOR'S BACK AND CABLED TO THE REGULATOR, ON THE FRONT PASSENGER'S SIDE. I HAVE REMOVED THE MOTOR AND THE CABLE REEL AND CONFIRMED THE PROBLEM. MOTOR IS ELECTRICALLY FUNCTIONAL. I HAVE NOT GOT INTO THE REAR RIGHT WINDOW YET, BUT IT IS ALSO NOT WORKING, WITH THE SAME SYMPTOMS DISPLAYED BY THE FRONT RIGHT. AFTER I CONFIRM THAT THERE ARE NO ELECTRICAL PROBLEMS, MY INTENTION IS TO REMOVE AND REPLACE THE REGULATOR / MOTOR ASSEMBLY TO BOTH WINDOWS, NOW THAT I HAVE FOUND NEW REPLACEMENTS ON-LINE AS ASSEMBLIES FOR A VERY REASONABLE PRICE OF ABOUT $60. PER ASSEMBLY. MY QUESTION IS:"HOW DOES ONE REMOVE AND RE-INSTALL THESE DEVICES WITHOUT HACKING A HUGH HOLE IN THE DOORS STRUCTURE OR WITHOUT HIRING THE SERVICES OF A WIZARD / MIDGET TO DO THE WORK?" HOW CAN YOU MAKE ALL CONNECTIONS FOR MOUNTING THE MOTOR AND REGULATOR TO THE DOOR AND THE WINDOW GLASS. I HAVE WATCHED A SHORT VIDEO ON THE SUBJECT, BUT THEY USED A DIFFERENT CAR ( IMPALLA I THINK) AND IT HAD VERY LARGE ACCESS HOLES IN THE DOOR. GRAND PRIX 2000'S DO NOT!