I always try electric guitars unplugged first. If it sounds good unplugged, you can always change out the electronics to get the sound you want. But if it doesn't sound good unplugged, it will never sound great plugged in, regardless of electronics.
As for your purpose, if I understand correctly, you are looking for a backup in case the Alembic electronics fail? IMHO that is looking for a solution where there is no problem. As you know, I have several Alembic and other guitars with Alembic guts. I've never had any of them fail. As for a backup, just in case, how about one of those Alembic cords with the Stratoblaster built in? Or just a Stratoblaster in a stompbox? Of course the ultimate backup could be an SF-2.
Bill, tgo