MGTOW of the CRJ 200 is 53000, BOW (including 50 seats, overhead bins, lav, galley/galley cart) was 31,000+/-.
hope it helps,
iball

edit: max fuel on the above CRJ is 14500. IIRC, it burns 4k the first hour, 2800-3000 every hour after hour 1.