Two 1.5" x 3" double T-slot bars for sale in Salt Lake City, $320 total. Brand new, never put them on my rig.
Description and pics here: https://aloffroadusa.com/collections/wumbo-crossbars/products/al-offroad-jumbo-crossbars-gfc-camper
It is for the V2 not V1. These are my brackets:
