Cool event loved seeing all the turbo buicks lined up :). I took video but I can't link it here so just search Turbo Thunder 2009 @ Pacific Raceways on youtube.
$39 bracket and you'll be able to bolt on 98-02 Fbody brakes (V6 models have the same brakes as far as I understand.) You can get the bracket from brphotrods dot com they claim it will work with any 10 bolt so hopefully it would work for you.