I'm asking for a dual-facion Dreadnought for years, but OPs idea is just doesn't work in my opinion and doesn't fit into either the Disney canon or the original canon characteristics of the ship.
Why 4 different package? Why a special die only for this ship? Especially one that cannot be mitigated? What's the point? Is this the Death Star or something? In doublearc this ship has a damage output roughly of an ISD front arc because you can't brace or redirect it. And 10 hull? Basically an ISD hull for third-half the price? Sure it won't be too powerful to roam with 90 hulls around in the same list. Add Motti. This ship would way-way-waaaaaay too overpowered.