why not try adding in robots that are haywire and try to turn renamon into a milking cow aka make her breasts get bigger with injections to make them more productive and maybe genitals bigger as well.
a machine zone has been talked about before, definitely not going to do anything related to injections though. the thought would be something more along the lines of robotic limb replacements with d-rings or visor stuff or maybe a tech-ey suit, unsure