Wilwood makes that kit, it's available in both 9" and 10" drum configurations. You'll need a 16" wheel, I believe. Still, worth the ~$100-200 more than a stock-type Disc brake kit!
10":
WILWOOD 140-11023-DR MOPAR A BODY FRONT DRILLED & SLOTTED KIT - RED #6198 | eBay
Just Ebay search "Wilwood...