Upload & Sell: Off
Location not important. Will be printing panos up to 30" wide. Lots of greens, yellows, oranges, and reds.
There should be many printshops offering wide gamut printing, but before you go there I would sugest soft proofing your images in Lr or Ps with selected profiles to see how wide you need to go.
All the major paper companies offer free downloadable profiles for a wide array of printers, it could well be that all you need is a printer with a Epson K3 VM inkset. In my own experience, larger inksets offer very little increased gamut.
What sort of paper were you thinking of having your images printed on?