My biggest challenge with all my CNJ projects. Time. I have stack of All-Nation coaches to build, repair, re-truck, or repaint. My late era 835 Pacific project is in limbo pending finding a suitable donor for the motor, tender, valve gear, and pilot, and while I'd love to tackle a DRX-6-4-2000 like yours one day in 2 rail, time is not my friend when I work constantly.
Look forward to seeing more of this project when your get time to do more on it.