Portable coffee maker

[hunit]

Hi guys,
I am working on a project that involves designing and manuf. a portable coffee maker, and I need help:

Im looking to find a water reservoir size ranging between 5 and 20 cm diameter also length between 5 and 20 cm. and im having a hard time finding suppliers or manufacturers, do u guys know any pls.
I also am looking for a portafilter to go just beneath this water reservoir , of a size about half the water reservoir size ,

thank you

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