I doubt you will find someone that will grow you those kind of quantities without a donation but that doesn't mean other options aren't available. Something to talk with your grower about. Most growers at minimum don't want to lose money growing as there are costs with growing (equipment, electricity, supplies) so either want to keep a part of the grow for their own discretion or sell/accept donations to cover costs (reduced pricing). Hope that helps and good luck finding someone you can work it out with near gresham.