it's my experience in 23 years of serving as a band leader in a praise and worship band is if you have FOH support, it's isn't going to matter what bass you are using. To the congregation whatever it's going to sound like an electric bass, which is the job of the sound tech.
BTW, I happen to have a Fender MIA PBj, and yes it does the PB thing really well. In fact, it's' the best PB I've ever laid my hands on. However sound techs to a man preferred by a large margin that my PBj VVT controls wide open which makes it sound more like a JB than a PB.
In conclusion, what you are considering is a significant investment to create a sound that more than likely you're the only one that will notice a difference. That said, it's your dollars, your art , your bass, and your ministry. Who am I to tell you what to do?