RS899, That last point has always been why I did my own gaskets... I wanted to fix the rust ( I always have old cars ) and it takes at least a day to do that right... I usually put epoxy paint on that area....
I will make a glass holder this next time... they show one in the manual... mine will have two of the suction cups mounted upside down with universal joints holding them... so the pressure on the curved glass can be determined by the glass at whereever it is placed on the 'table'.... will make pics of it , naturally...