Referral Ship: General Chang's BoP that fires while cloaked. Make it look like the T1 B'Rel and T1 B'Rel Refit. Would be the same size as the T1 but same stats as a T5 BoP. Give it target sub-systems just like a science ship. As for firing while cloaked, give the cloak a similar ability as Jam Sensors but with no timer. Just like Jam Sensors, the higher the Aux you have, the more damage you can do before decloaking. If you're careful and have high Aux, you can stay cloaked.
Wow, that's a VERY well thought out way to balance that ship!
The stats may need to be throttled back a little from T5 to offset the sub-systems targeting... or perhaps give it assigned seats to keep it balanced?
Regardless of balance tweaks, target sub-systems and the Jam Sensors cloak idea are both spot-on with how this ship should be interpreted into STO!
If and when I'm back in a salaried position again, I'd drop $25 worth of C-Points on that bird, no question.