Try contracting Andrew Morrision at www.strawbale.com as the owner and author of this site he may be able better to direct you towards financing and funding.
For more information:
Read "We'd like to buy an existing house and "green" it. Can we finance the improvements?" a Q&A answered by Ryan Flegal.
Also read Rick Williams's Q&A "What are the best choices for solar finance, or an energy efficiency loan, now that PACE is unavailable?"