The existing Nurgle options from GW aren't my cup of tea, not to mention being more than a little pricey! They were also a little too big and over-the-top – I needed a troll or ogre, rather than an immense demon. I discounted all the not-Nurgle options from various companies for similar reasons.
The real work, such as it was, lay in clipping away the big old staff/mace the model was originally holding. This necessitated a minor resculpt on his hand, to add in a couple of knuckles that were previously covered.
Painting, as with all the recent Nurgle stuff, was swift and simple – flesh, green/purple wash, drybrush with more flesh, paint loincloth, pick out pustules and warts, wash the lot. He's come out much darker than I expected, not that I dislike it, but it's definitely not what I originally had in my head. It does set it apart from the usual paintjobs I see on the model, which lean much more towards the pale. Still, minor niggles aside, I think he fits in well with the gang so far: