Well, there'x [this] guy who benched 30k on celestial weaver, and I've had decent success running similar build in open world and soloing DRM CMs — tanky, convenient to play, respectable dps, power makes up ~35% of dps so clearing trash is faster than with pure condi trailblazer.
If I had to guess trailblazer probably benches around 33-34k (considering regular viper build has around 38k dps with ~25% of it being power damage), but no benchmarks seem to exist for it. Sustain should be roughly the same as celestial — more toughness but less healing and barrier.
Overall celestial is a very nice set to have but it's not a straight up upgrade to trailblazer's. I'd suggest keeping trailblazer and building cele in addition if you really want it.