My proposals:
[] Starhawk Assault Ketch
-[] 1x Heavy Starlance -1 Heavy weapon slot
-[] 1x Fatetwister Cannon Weapons Battery - 1 Weapon slot
-[] 1x Spike Macrocannon Battery - 1 Weapon slot
-[] 1x Æthersail - 1 System slot
-[] 1x Plasma Thrusters - 2 System slots
-[] Point Defense Battery - Spike Cannons - 1 System slot
-[] Grav-Shield - 2 System slots
-[] 1x Holo-Field -1 System slot
[] Budget Starhawk Assault Ketch
-[] 1x Heavy Starlance -1 Heavy weapon slot
-[] 2x Spike Macrocannon Battery - 2 Weapon slots
-[] 1x Æthersail - 1 System slot
-[] 1x Plasma Thrusters - 2 System slots
-[] Point Defense Battery - Spike Cannons - 1 System slot
-[] Grav-Shield - 2 System slots
-[] 1x Holo-Field -1 System slot
[] Starhawk Fast Assault Ketch
-[] 1x Heavy Starlance -1 Heavy weapon slot
-[] 1x Fatetwister Cannon Weapons Battery - 1 Weapon slot
-[] 1x Spike Macrocannon Battery - 1 Weapon slot
-[] 3x Æthersail - 3 System slot
-[] Point Defense Battery - Spike Cannons - 1 System slot
-[] Grav-Shield - 2 System slots
-[] 1x Holo-Field -1 System slot
[] Budget Starhawk Fast Assault Ketch
-[] 1x Heavy Starlance -1 Heavy weapon slot
-[] 2x Spike Macrocannon Battery - 2 Weapon slots
-[] 3x Æthersail - 3 System slot
-[] Point Defense Battery - Spike Cannons - 1 System slot
-[] Grav-Shield - 2 System slots
-[] 1x Holo-Field -1 System slot
I think that more than 1 Fatetwister battery (50 scopes each) would be too costly so I'm using a Spike battery to fill in the second weapon battery slot, also included budget options with all Spikes and no Fatetwisters.
I'm favoring Grav-Shields over hull reinforcement as with our limited amount of system slots you're not going to be able to make our ships that much tankier with only one or two slots invested, especially for one of our smallest ships which are going to be inherently more fragile.
The fact that Æthersails are still included means that even if the additional tankiness initially saves the ship from an otherwise killing or crippling blow that ship will still have likely lost it's Æthersails, meaning it's going to be left behind by the rest of the fleet since all our other ships are optimized for avoiding hits.
Also, just a reminder that Close-In Weapons Batteries are worse against strike craft and ordinance in exchange for being capable of damaging starships.
There's actually two kinds; vehicle scale ones that are only good against smallcraft (and missiles) but very very good at that role, or "Close-In Weapons Batteries"--Superheavy scale weapons which, while somewhat less effective against smallcraft, are actually powerful enough to inflict meaningful damage to another Voidship at close range.
Since most of the proposed designs include a Heavy Starlance and a Fatetwister battery the resulting ship's anti-ship capabilities should already be pretty solid. Sacrificing a whole extra system slot and a reduction in PD effectiveness for a tiny bit more anti-ship damage just doesn't seem worth it to me, even more so if you're proposing superheavy vehicle Starlances as CWIS given the very costly Starcrystal (520 Starcrystals) price tag.
Another alternative:
[] Holographic Grav-Sail Ketch
-[] 1x Heavy Starlance -1 Heyv slot
-[] 1x Fatetwister Cannon Weapons Battery - 1 Weapon slot
-[] 1x Æthersail - 1 System slot
-[] 1x Plasma Thrusters - 4 System slots
-[] 1x Starlance Close-In Weapons Battery -2 System slots
-[] 1x Holo-Field -1 System slot
-[] Trade in one weapon slot for 1 System Slot
-[] Grav-Shield - 2 system slots.
Somewhat slower due to 1 Sail+Thrusters but should still be doing well.
The Holo-Field is I think more important on all ships than the grav-shields for stealth reasons that make them very valuable for us and i think can generally be seen allows to engage on your terms and disengage/retreat in almost all scenarios where the ships hasn't been mobility killed.
Plasma Thrusters only cost 2 System slots, might want to change that 4 System slots entry.