Well depending on how the initiation is handled. The blondie Cain liked seemed rather rural, while Cawl seemed to have been genetically engineered and purposefully selected.
So it maybe likely that an above average candidate gets cybernetised early on. As for later, most Techpriests don't like to bother with food and drinks, and legs are usually enchanced or removed. This is likely due to the fact that the legs and spine need to carry the weight, and the human hands are okey all purpose manipulators. Indeed the hands seem to "stay" for quite long, instead of being replaced they usually get additional arms.
This may just be a design choice by GW to add more human element to the AM hero units, but usually they got one human hand showing, and usually some parts of the face. Though in the books many appear completely mechanical, with the meaty parts hidden deep under metal.
So it is bad news for Coom God followers, most of the Machine cultists wouldn't be in lingeries outside of ... how do I put it, fan art of questinable canonicity.
Of course, the newly introduced Electropriests differ from this. They seem to be all buff and ripped. So at least you get half naked Electric Men.
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Even the girl from the shitty ass mobile game got her tits nerfed apparently. Or maybe the first is fan art? I'm not sure.