You can try Poster Mountain or Precision Restoration.
A few months ago I had my Japanese special billboard for 2 for the Road done and it was about 65" square. That ran about $600 + shipping. Since you're talking about something with about 75% more surface area I suspect it will be more than that, maybe not 75% more but who knows.
I can recommend both of these for larger format material. I don't think Dario Casadei can handle this size (yet) with his current setup.