1) Circle on my image is only mounting hole for pushbutton (1.13 ") so it's not bezel size.
2)
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7
From pushbutton centre #1 to #2, #2-#3, #4-#5, #5-#6 distance is : 4,5 cm (1,77").
Between #1-#4, #2-#5, #3-#6 : 4,5 cm too.
Only from centre of #4 to #7 is 5 cm (1,96 ").
For Defender, only Hyperspace placement is not so good. Others are ok.
For others games it's ok.