WM Cyriss conversion (may need 40k help?)

So during a slow day yesterday, I thought about a conversion project that might be fun. In NQ #10 a guy had converted Temple Flameguard into priests of Cyriss, which look pretty cool. I thought I might copy that, but add a phalanx of IK Tomb Maidens (as Steelhead Halbardiers) to begin fleshing out an army. Still working on figuring out the 'caster.

The hard part, though, may be the 'jacks. In the same #10, there's a picture of a Cyriss construct that I thought I might try to copy. I'm thinking the Leviathan/Harrower legs would be great for the lower body, but I'm having trouble with the upper part. I'd prefer to use Privateer Press parts, but I could see 40K stuff being really helpful too.

Okay, so I'm not able to upload the picture, which would have really helped ... A google search is only producing images of Miley Cyrus -- not what I'm looking for. Instead, imagine IG-88 from Star Wars with four robot arms ending in hands, and four spider-like legs (which I've got covered). It should probably be the size for a model with a 50mm base. Not real helpful, but may give you an idea ...

I'm also not as handy with greenstuff and molds as the guy in the article, so the Servitors (tiny flying robot balls) might also be difficult. The Cygnar Squire body (perhaps augmented with Cephalyx arms) would seem to be a good start, but it too would take some work (and I'd love to find some way to defray the cost ...).

Any suggestions as to the conversion (or even fleshing out the army to be somewhat viable on the table) are welcome. Thanks!