I have a Gibson J185 EC with a fishman pickup system (including a barndoor style preamp). I would like to update to an anthem pickup system and need some assistance.

It looks like the stagepro preamp is smaller than my existing fishman.

Would you recommend having my luthier create some kind of custom bezel to hold the stagepro? Or would you recommend getting the standard Anthem system and just leaving the unused fishman preamp in my guitar?