get the MBZ glass hands down..mine cracked also and they wanted to do the same thing...I insited on MBZ glass..it will fit better and it will look better..I was told that non MBZ glass might not have the same fit. so possible it will leak or you could hear air leaks.

so make the insurance company fix it to the original condition and if you have to wait then do it.

benzat

1982 380 SEC