Blight Wheel do a pretty huge amount of sci-fi models and conversion parts, and for someone interested in anything cyborg or adeptus mechanicus related, they have a lot of choice. The war bot in particular is a great model. I have noticed though, that there can be an issue with stock. I've been waiting on the bionic arms and servo arms to become available for a couple of months now, to no avail. Maybe it's a low restock and I've been missing them.
I did however order some bionic arms with weapons, Sino russia Torsos 01 and Torso kit 04 Composite armour for the Contagii. Delivery time was pretty reasonable.
|Composite Armour Torsos|
|Sino Russian Torsos|
|bionic arms with weapons|
Right now it seems the company is closed for holidays, so a lot of the items are unavailable. Once they open up again do take a look at the range if you're looking for that certain arm/head/torso, there's a lot to choose from.