I agree.
I'd suggest painting the Stealers, the Broodlord, and Two Trygons, first...then build out from that core.
Automatically Appended Next Post: Oh, I see you have enough to paint Two Broods of Stealers, add that to the "Do me first" pile.
Automatically Appended Next Post: So you're working from:
Battalion: Hive Fleet "X"
HQ:Broodlord...around 162
HQ:Broodlord, the same
Troops: Genestealer Brood, x20....around 240
Troops: Genestealer Brood, x20
Heavy: Trygon, with Adrenals...around 180
Heavy: Trygon, as above
Toss in some Elite, and Moar Troops!, and you've got a decent army!
This army is built around putting the Stealers in the Trygon Tunnels, so it needs some Troops to deploy on table to finish out, the extra points can go
fo Elites, or extra
HQ etc...Best of luck with this Awesome project!