I’m not the OP but I went ahead and bought his file and sliced* it and with 20% infill, it will require about 77g of filament. So with one normal spool, you could print 12 of them.

I can only vouch directly for the M5, but looking into the differences, it looks like the M5C would be a solid option. I would miss the onboard camera and the ability to check my prints and get notifications of suspicious issues, but the printer itself is more or less the same otherwise.

• Slicing is the process where a program takes the 3D model and turns it into layer by layer instructions for the printer and where you configure lots of settings such as infill, which is how much of the interior of the model is printed with a lattice for structural support. Prints are rarely 100% solid material but rather a hull with infill.