Welcome to InsideFlyer.
I'm not quite sure where you've received an "Avios upgrade award". Is that Lloyds? It also would be good to have an idea of how much "quite a few Avios" actually is. For a few of us, that might be a million or two...
But, otherwise, the usual idea is to book a Premium Economy paid ticket and use your Avios to upgrade to Club World. You can see this online as "Book with money, upgrade with Avios". Unfortunately you can only upgrade one cabin when using Avios, so you need to pay for PE if you want to upgrade to Club World.
Alternatively, I believe that Aer Lingus fly to Orlando, as do Air Berlin. You can find in the blog section that we often refer to "positioning" flights. If you have enough Avios, then you could book Business Class rewards on either airline, and pay much much less in taxes and surcharges. But you then must make your own way to Dublin or Dusseldorf. (less convenient if you already live near London, but not a big issue for those already living far from London)
Anyhow, hope that helps, but feel free to provide more details and we'll try to help you out. Booking this far in advance is good for tracking down reward space...
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