This is a remix as I needed a narrow tap handle as my taps are very close. The handle is 53mm wide and 141mm tall. The label port viewable is 41mm x 88.5mm and accepts up to 45mm x 90mm labels that slide in from the top. I just used regular paper and then laminated or clear packing tape them as my taps are outside.
I did not use supports but you may want to as it will produce a better looking bottom on the card slot.
Epoxy a 3/8"-16 nut in the end and also glue plug to cover nut.