Goliath Stimmers conversion?

In House of Chains, stimmers are able to take renderizers and I'd really like to take advantage of that but the stimmers suffer from a dire case of monopose minis. Are there ways to get around this with convenient proxies or a helpful bit from some other model? or is the only option to try my luck with greenstuff to adjust the pose of these miniatures to accommodate renderizers and make them look more interesting