Go to the Oregon falconers association website to see about upcoming meets. The summer meet hasn't been announced yet but it is planned for June/July.
If you haven't contacted ODFW yet that is your first step. Roxie, the falconry coordinator, is very helpful and can get you pointed in the right direction. She will send you a packet with all the info and a list of potential sponsors.
Do your research first before contacting falconers to ask if they will sponsor you. They want to see you are truly dedicated to it and have at least read a few books before jumping in.