One: edit away exact points costs as it violates
GW's Intel. Property rights and gets Dakka in trouble.
Two:
Whacha plaayyin'?

Garage games or tourney? Book missions or ITC stuff?
As is, the 2k list looks fine for GGs, but tourneys will have smaller points values.
Best units are Scatbikes, Hawks & WKs. Spiders if you own any.
Weaker:
a. the Wave Serpent Fire Dragons. FireDs can't match Hawks' vehicle killing power. It's mostly the range the Hawks have for simply doing Hull Points with their 18" Move and then
2d6 charge range with Haywires. For less points when you include the WaveS to deliver FireDs.
b. Banshees. The poor dears have no Open Topped Vehicles to assault out of, unless you get yourself some Dark Eldar Allies. The courtesan
HQ, some Kabalite Warriors and then a Raider. Scorpions have Infiltrate to help them get to h2h faster, but not these girls. Because of eldar lacking a good delivery boat, unless you ally, they're at near the bottom of the *really* good cue of Eldar Units.
c. Scorpions - Infiltrate helps, and their exarch rocks with an
init 6 Power Claw, but ultimately, you can populate your army with far better units.
Middle: Dark Reapers, with StarShot upgrade. Dire Avengers, Guardians (cheap with guns better than bolters!)
The Craftworld set up with full 6" Run is meh. Running a
CAD grants the Jetbikes ObSec and thus more value in objective missions, and then you simply include the detachments, depending on build limitations in tourneys.
For a fluffier game, use the Highlander building set: Only one kind of unit per army. *Only* one unit of JBs, only one WK, only one unit of Hawks, etc.
The points per unit have lowered since 5e so that 2k game is gonna be 3 hours, longer if casual. With beer.

Also, the game is longer because of a longer Psy-phase and more rolling, OverWatch, Hammer of Wrath and lotsa other little items that 5e didn't have. Arguably, 5e might have been the fastest
40k version.
I would make a list for 1500, 1750, 1850 and then your 2k long after/evening list.
Proxy your Warlock as a farseer. Dual farseers are likely to get the best powers, starting with Divination to get Prescience, which is better than Guide, and then hitting Runes of Fate for Fortune.
I'm a monthly tourney attendee, so I tend to powerful builds, as, well, 'fluffy' is just not really well defined. By Anybody.