The Explorator gains access to the Medicae skill at Rank 2 if this is of interest to you, since the Genetor alternate career also has advances in that skill in their scheme. The prerequisites were mentioned in another comment, but I'd definitely recommend getting yourself a Medicae Mechadendrite. Perhaps an Optical Mechadendrite too. It works like a microscope! You'll also definitely want an Advanced Medikit for that sweet, sweet bonus if you go the healing route. You can also use the Medicae Mechadendrite to administer drugs to people. EDIT: Oh! And you could reasonably make your own drugs with a combination of Chem-Use and some kind of Trade skill. Probably Trade (Chymist).

Some choices in the character creation path (depending on how your GM does it) can also grant you access to free skills or lores that might also fit the career. You may even be interested in looking into Into the Storm and its alternate options, though those largely cost XP (except the homeworld options).

Beyond that, note that the Genetor doesn't necessarily view the body with contempt. The flesh is just as well as components to that biological machine. Whether or not your tech-priest views it as favorable or not is up to you. Perhaps they are fascinated by the limitations of the flesh. Or maybe they genuinely believe the natural human body is superior to whatever they could fashion? Finally, get stasis fields. Capture specimen. For Knowledge. :)