I am finding the same shortage issues in Canada. Both the Baby and CB coils are getting harder to find.
I bought a bunch of each from Fasttech to ensure I am stocked. I am generally a RTA guy, but I love that I am getting about a month out of these coils. They were cheap and with ePacket, they were at my door within 2 weeks.
I have about 50 Baby coils and about 40 CB coils which should last me a couple/few years in my 4 tanks. After that, strictly RBAs in all of them.