The best bet is to ask around your community. Odds are good that someone you know has a 3-d printer. There are even some public libraries that now...
Looks good. I printed mine using PET-G (very similar to 2 liter bottle plastic). I would avoid PLA. It has a habit of absorbing liquids
Likely would require a slight redesign to work with the caps which resist easy opening. The O-ring is recessed in such a way that it likely would...
I believe that would be acceptable. Since I recreated a commercial item I listed it as a design that can not be made and sold for profit.
Screen shot from Thingiverse [ATTACH]
I made a 3-d printed version of the red plastic one. MSR Fuel Bottle Spout by Mohoganogan
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