if you aim for something the size of the juggernaut, - you d have a ship twice the size of a kusari battleship ( roughly ) - and even the juggernaut only has 16 turrets! - and only a few of them can fire rear / sideways / up and down - which is a weakspot for a ship of that size.
aside from concerns of balance - and that kusari will scream for a smaller sized medium powercore battleship then, i guess. - can bretonia actually afford a new vessel in the limitations of its roleplay that is.
one of their main raw material processing facilities is gone - and not only destroyed but taken over by the enemy - also partly cutting the mining field off ( LD-14 )
i d rather see bretonia build refugee transports and colonization ships than superheavy dreadnoughts.
but THAT would be a discussion other than the pure model discussion. - i cannot deny that i am opposed to the idea of a bretonian heavy dreadnought - as i am opposed to the idea of a very fast rheinland battleship or actually - a kusari light battleship.
for me - its a ship that is not needed ... at least not in playerhands.
if such a ship was richly detailed and put into the game as a BASE - a bridgehead to which BAF forces can retreat to ... with if you like ... 18 turrets. - fine by me. a playable version is something i m not convinced about yet.