when I wanted my blank dash I tried to get one from bc broncos. they were not able to make any at the time. they were looking at options. I waited 6 months and never got one so I started talking with a guy on my jeep forum that makes custom dashes for jeeps. his name is Dan Dilner. Double D fab.
https://www.doubledfab.com/ I sent him my original dash and my plan for what I wanted. he took all my information and used my original dash to set up weldmate panels to have custom dashes made. he made mine and kept all the original information so he could custom make any type of dash or modification anyone can dream up. I wanted to be able to use the stock defrost vent, and the stock dash pad. it uses all the original mounting points etc. it fits perfect.