So I'm definitely getting a Silencer and a Gunboat, it should I get 2 Gunboats?

Kylo Ren - 35
Push the Limit - 3
Advanced Sensors - 3
Autothrusters - 2
First Order Vanguard - 2
= 45

Nu Squadron Gunboat - 18
HLC - 7

Turret title - 1

Nu Squadron Gunboat - 18

HLC - 7

Turret title - 1

3 left points for something, but not sure what. It's not enough points for the title + linked battery on both.

Or

Nu Squadron Gunboat - 18
Harpoon missiles - 4
Advanced SLAM - 2
OS1 loading - 2

Nu Squadron Gunboat - 18
Harpoon missiles - 4
Advanced SLAM - 2
OS1 loading - 2

With 3 points for something, but what?

The low PS generics definitely look like they will perform better with the cannons, although a Rho with deadeye seems to work well enough. I've had the opportunity to sim fly a silencer and absolutely loved PTL and Primed Thrusters on it. I'd absolutely try to fit that in for only a single point. I was toying with the idea of running Kylo and 2 Nu's just over breakfast and like the idea of running manglers on them. Helps keep ISYTDS used each turn if possible. That list was

Kylo (35) with autothrusters (2), PTL (3), TIE Vanguard (2), Adv Sensors (3) and Primed Thrusters (1) [46]

2x Nu Pilot (18) with LRS (0), XG-1 (1), Mangler Cannon (4) [23]

or

2x Nu Pilot (18) with ASLAM (2), XG-1 (1), Flechette Cannon (2), Jamming Beam (1) [24]

That leaves you with 8 points to fill out with ordnance or additional cannons. Kylo is cake to fly like this, but you could go more defensive with sensor jammer and pattern analyzer for 2 extra points. I'm not a fan of that style, but it makes him nearly unkillable late game. Throwing Linked Beams on your Nu's means you'll almost never have to spend your target locks, but you won't be able to afford more than flechette torps on them. Proton torps go great with Kylo's condition card, and you'll have double mods on your opening shot as long as they don't arc dodge your 2s (a very real possibility). If you want to play the control game, flechette and jamming cannons and adv slam work wonders with a Nu, and leaves you with 6 points for ordnance or a bid. Give your opponents a stress and remove the next token they get (assuming they spent their load earlier that round) and you can shut down a ship as long as you can stick to it. It's not as reliable as ion cannons, but you can't fire those while disabled.

You should as far as I can see the great thing with the gunboat are the generics.
In my opinion the OS Title is a trap. for your list I would defenitly go for the XG-1 variant, probably dropping the hlcs for manglers

something like this
2x
NU-Squad (18)

+ XG-1 (1), Mangler Cannon (4) Linked Battery or Flechette Cannon (2) Adv.SLAM or Vector Thrusters (2)

I think 2 will be a solid number.

Oh man, dropping to Manglers frees a lot of points. I'll definitely have a think about that. I mean, I'll have to buy some Manglers first as I own none, but still :D.

Double Rhos with Deadeye, Advanced SLAM, OS-1, Harpoons, Protons, and Captain Jonus with Fleet Officer is gonna be magical. So yeah, 2 would be a great purchase.

You roll up and get a target lock (not to spend) so as to fulfill the requirements of the title. Then, Fleet Officer provides the focuses you need to fire, while your action can either reload or focus to mod on top of Jonus' rerolls

Double Rhos with GChips, Deadeye and Harpoons with Double Nu's running LRS, XG-1 and Manglers will be a fun alpha strike if you want to fly all the gunboats. Needs a round to run away and reload, but the jousts will be nasty.