I'm in a similar boat. Managed to obtain 1 single CM4 a while ago and it ended up needing to be used for something else so I had to shelve the interceptor. I've had an open order for another CM4 with Element14 for over a year now. As soon as I saw this news of supporting Banana PI I ordered one immediately and today I'm able to finally start using the interceptor board

Noted, thanks for the fast response!