I have never tried it but Revell has pilots in the 1/72 SnapTite kit 1183. You should be able to contact Revell and ask for replacement parts. (I hear that you can)
Check the manual for the phone # to the hotline.http://manuals.hobbico.com/rmx/85-1183.pdf
Also, at my LHS I once in awhile see individual pilots and figures . I just don't have to much info about modeling in general to give you specifics.
Force XXI Miniatures
Check out my You Tube pagehttp://www.youtube.com/user/Stryker11B200