When Patrick went to Junior Road Worlds in Russia a few years ago, we were very pleased that CCCC helped out, as well as
2XU (who was a sponsor at the time), he also got a local junior sportsperson award from the local paper that provided cash, we sold a bike, and I think his grandma helped out a bit as well.
Even if you are involved with any gyms they might chip in. Unfortunately with getting him there, we couldn't go as well.
Just some ideas for you to try. Good luck!