which 24P package - a DVX100A? a SDX900? a VariCam? a Cinealta? 16mm?
35MM? If the answer is DVX100a, I'd suggest unless you don't get
your 500K, moving up the production scale.
You might want to look under the TOOLS section of Transom.org. Transom.org is an experiment in channeling new work and voices to public radio through the Internet. The TOOLS section includes info and guides covering the technical aspects of recording/ interviewing. There is a "Mini-Disc Guide" guide as well as "Remote Recording Survival Guide."