In order to align the parts, I've left a slot that accepts 1.75mm filament. The slot is 2mm, but you may need to open it up using heat or a file. It can close up do to first layer flattening.
Finished print measures 182, 160, 169 mm.
The files include built-in Meshmixer supports. I've also included the full model if you want to do it yourself.
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