We believe the following links may be useful to you.
There is no point trying to get them to outbid each other, they sell it at the same price.
The following consultants can put together and maintain Metrix projects:
The California Energy Commission has put together a very nice guide that can help you put together your utility bill tracking program.
The International Monitoring and Verification Protocol (IPMVP) can be downloaded at the IPMVP site. Metrix is used in the "Whole Building Approach", which is Option C.
Jim Waltz wrote a book on performance contracting that deals extensively on M&V. It is sold at the AEE bookstore. Click on this link and then do a search for "Waltz".