For this platoon, I started with the Cawdor Gang box which includes ten figures. As this is a Neophyte Hybrid squad, I wanted to keep the weapon load out fairly simple. Autoguns for most of the squad, and icon, a heavy stubber, a couple of flamers, and a Leader with a power pick. While many of those weapons don't come in the standard box, Forge world makes two upgrade sets, originally entitled Set 1 and Set 2 that provide enough additional options to complete your load-out. I picked up one of each, and if you're doing the math, yes I do have a second unit converted from the Cawdor Gang box that is in progress. I pulled the heads and other details from the Genestealer Cult upgrade sprue and the Neophyte Hybrid box.
More at the blog:
https://miniordnancerev.blogspot.com/2019/12/genestealer-cult-neophyte-hybrid.html