Interesting (Expensive) Conundrum with Jackaroo

Driver's side window collapses into door.
Off to GM dealer - New regulator - $400
Ten days later happens again
Back to dealer - Need new window $500
Why?
Because the clamp which holds the glass to the regulator is actually part of the window and for some strange reason Isuzu made it necessary to purchase both together if one fails. I am also informed by the dealer they glued the clamp back to the glass when they replaced the regulator - The second failing occurred when the clamp broke - No clamp = new window = $500 = $1000 for electric window failure.
Lots of unpleasant talk followed by leaving yet another GM dealer and writing complaint letter to principal of the dealership (did no good incidentally) and I end up at local mechanics place who is foaming at the bit to get our two fourbys looked after by him. Told him my problem and the proposed cost of $1000 and off he went to solve the situation - Big problem - The dealer was telling the truth. He managed to find out from one GM dealer that they found the Camira (remember them?) clamp was similar and could be purchased for $100 or so - Off he went with my blessing to purchase the Camira part - 5 hours of work later he admits defeat - the window goes up fine but distorts and separates from the clamp when coming down - I watched it do it. - Back to the experts - What if we put a new window in and it is something else - This could be bankruptcy territory - End result - New window ordered - GM tell us the Isuzu (I refuse most times to call it a Holden Jackaroo because GM could never manufacture such a magnificent machine) window glass which is laminated separates and this happens - only way to fix it is new window - I can hardly wait for the other three to go.
Wow - What a drama and cost. - Has anyone else experienced it?
Needless to say I ma being very good tonight and trying to get a few brownie points by being nice to people in the hope the big mechanic in the sky will finally have mercy on me.