Nothing, you need extra tools for those. That's the point, if he doesn't have stuff for that, he'll need to get those, or he's almost useless.
Was that ever mentioned by piecewise? Even if it was, then that just means that whoever buys the surgical tools armoury item needs a medical kit, which should be easy to get for a medic. And that item is for medics with tokens to spare who don't want to buy a DoctorBody (assuming it becomes an armoury item), so they should already have a kit.
Anyway, it still probably doesn't apply to the DoctorBody, since piecewise said it can perform transplants and never implied he had to buy anything else to do so. He told her to "go out there and heal people", not "go out there, get someone to buy you some tools or scrounge some tokens to buy them yourself and
then heal people". So until he answers Xantalos' current post, I'll be assuming it can do anything a medic with some surgical tools and an advanced kit can.
Also (and I asked this to kri once as well), how do the limbs interface with their new owner? Anyone ever asked this to pw?
Don't you remember when Mesk installed prosthetics during the AP mission? In the case of robotic limbs, you surgically attach an electronic device that provides an interface between the patient's nerves and the robotic limb. It looks sort of like a socket. The limb is attached on that.
In the case of synthetic limbs, bones and organs however, like the ones Feyri had before she became a full robot (NOT synthflesh, synthflesh is the one thing the body doesn't work with for some reason, even though it should be interchangeable with robotic limbs), because they are made to be compatible with human biology, they simply need to be surgically attached at the proper places. Like reattaching a limb, but with future-tech.
I don't know if Vanessa has synthetic or robotic limbs, but it's probably robotic or a mixture of the two, so she can work with both humans and robots more easily, as piecewise said. And definitely some synthetic organs, since organics need those. Either way, it doesn't change much.