Looks awesome Sean!
Your armor totally has a steampunk feel to it which is awesome. With regards to your latex painting, if you cost your paintbrush in liquid dish soap you won't have to make constant trips to the sink to wash it out as the latex can't bond to the soap in the bristles. Also, if your paint gun is getting gummed up by the latex and tinting, you can try thinning it down with pure Ammonia. It'll make it runnier and may help with spraying. I'm assuming that you won't see the hips once you put on the armor so the areas at the tops of the legs shouldn't be an issue; if you aren't making hip covers you should consider making some hip muscles though. Your muscles all look amazing and they line up and seem like they'll move like their real life counterparts. I'd be interested in seeing all the muscles on the back too.
Keep up the great work!
Micah