As well as their plastic sets, Wargames Atlantic have a growing digital catalogue of 3d print files, some of which can be purchased as a physical product from Only Games (https://only-games.co/collections/wargames-atlantic).
One of these sets is for civilian Cannon Fodder providing three new body pieces (seen below) and multiple tool carrying arms.
I plan on creating a scenic piece using Cannon Fodder to represent an Imperial Guard motor pool. Basic upkeep on armoured vehicles being conducted by Guardsmen with an Enginseer looking over.
The Ridgehauler models came with tools as did the recent Rogal Dorn kits. Add in some ammo boxes, fuel drums and so on and I'll see what I can come up with.
I may even look at converting a Munitorum Container to be the tool shed.