Other than the safety, bolt catch and the trigger pins I think the rest is AR-15 compatible for the little parts. I just swapped in an ALG ACT trigger into mine and it was just like installing a trigger in an AR-15 other than having to mess around with the bolt catch.
Why do you think that? Just because you don't have one doesn't mean there is no market. There are lots of 180B's floating around. Most guys that have them now are like me and have decided that it's never going to see the EE.
Discontinued 10 years ago and still a very sought after rifle, they've been rising in "value" since about 2012 if the asking prices on the EE are any indication. Not sure what the dreamers actually sold them for but they pop up and are marked sold very shortly after if the price is even remotely close to reasonable.
Ya, you have a point there, well I'm sure CA will take care of the details before they have a stack of these in the warehouse with no FRT.