Let me show you what overkill is:
may I present.......
The supremacy!!!!!!!!!!!!(Last Jedi)
image https://i.imgur.com/JcnnLwU.png
image https://i.imgur.com/qjjrlsJ.jpg
coming built in with 2 star destroyers, this ship packs a powerful punch. It uses the large ships mod, and costs 38,000,000 (approx) credits.
you wanted overkill ships????
I gave you the largest ship in all of star wars.*
*the death star isn't a ship, and I'm not using the eclipse, since people are still debating about whether or not its canon. my comparison is within canon only.