Someone created a better version here which in addition to being shorter also has more of a slope so I recommend using that one if you need more room.
When installing the Gaggimate PRO PCB in the Gaggia Classic E24 I was just a couple of mm short on space. This mod allowed me to fit the funnel and have magnets on the base of the enclosure. This model has 2mm taken out of the height, there is still room for the PCB and wires on the inside.
Link to the Gaggimate project on Github
The author remixed this model.
2mm shorter