Hrud themed army idea.

This is my idea to create a Hrud Themed army from the Chaos Daemons and Chaos Space Marines Codecies. The units will mainly be drawn from the Chaos daemons Codex as this fits the Bizzare and Terrifiying nature of the Hrud. The CSM codex is also important because it will allow human Zanhaad to be represented in the form of cultists and their stolen vehicles by Rhinos, ect.

Regular Hrud can be represented by Hobbit Goblins, maybe with greenstuff cloaks. However I think with just a dark paint scheme and being stuck in clusters on a 40mm base they would suffice. Use these as Nurglings.

Bendies (The tall lanky Hrud) can be made by making a wire armature and spreading hot glue over it, this will make a disgusting decaying look to it. Tyranid or daemon heads and hands can be added before the hot glue is put on if you don't want to sculpt your own faces and features. Use these as Plaguebearers.

Umbra are easy to make, just get a wooden bead and make an appropriate stand for it, paint black and gloss varnish, done. Use these as Flamers of Tzeentch (you could even make bigger ones and use them as Screamers)

Zanhaad are also very easy. The GW cultists are just fine for this. They are all wearing some kind of gasmask which represents their dependency on the Toxins the Hrud are known for. Try to paint their skin in an unhealthy greyish color and paint their hair grey. This is because the Hrud cause humans in their vicinity to age rapidly.

The various machines the Hrud steal can be represented by any converted vehicle from the Games workshop range. Making a chaos space marine tank "Orky" would fit because the Hrud are scavengers.

Do not include any Slaaneshi units in a Hrud army. The Hrud's god Qah was shattered into many fragments by the Prince of Pleasure. These fragments became the Umbra so presumably they hate him/her

The allies matrix would also have to change. This is what I would change it to

Battle Brothers:
Chaos Daemons
Chaos Space Marines
Dark Eldar

Allies of Convenience:
Genestealer Cults
Tau

Desperate Allies
Armies of the Imperium
Eldar
Khorne Daemonkin

Come the Apocalypse
Tyranids
Necrons
(Anything Slanneshi)