Check with ModernSuede.com to get a quote.
I do the SPAZ patches thru there, and I usually will take pre-orders to try and cover half of the upfront costs, then cover the rest myself and get it back when ordered.
Also check with Scootmoto.com, he will probably want to buy a small batch while will help offset the costs too.
Could also advertise orders on some of the other scooter forums to help.
One thing to note, I am not sure how much of your skyline will be doable with stitching. It's a bit too much detail for that small of an area. Otherwise, the design is very nice and to the point! Patch design is a pain to get right and you done it right fosho
I've designed for embroidery before, and I would assume that this would replicate pretty well. I wouldn't be worried about the tiniest of details being exact, since most of the landmarks are pretty recognizable as is. What I could do, if needed, is enlarge some of them, while leaving others off completely. No big deal either way.
Thanks for the props.