Okay, now Gyrre has a general discussion thread on this subject but I think that it's been long enough for us to talk about what May might want rather than what we want. I admit to being in two minds now because, whilst my original idea was based on what we've seen of May's likes and dislikes so far, her blossoming interest in Sven and exploring the degree to which she can be part of human sexuality has shifted my views somewhat.
Originally, I thought that, if she had any choice in the world, it would be some kind of spacecraft. Why? Because, back at the end of her first appearance, her greatest wish was to look at the stars. I can imagine that the opportunity to regularly go beyond the atmosphere and see the stars more clearly than she could from anywhere on Earth would be a source of unending wonder to her.
However, this whole thing with Sven complicates matters somewhat. She's suddenly gained an interest and link with humanity and human social connections that she didn't really have before, making her choosing a better quality and somewhat more 'functional' chassis a definite possibility for her wish list.
The ideal, I think is something like in Anne McCaffrey's
The Ship Who Searched where, at the climax, the titular brainship in question has an ultra-high-fidelity anthropomimetic drone built that she can operate remotely using her ship-body's drone control system. This brings her and her pilot somewhat... er...
closer. So, yeah, I think that the happy medium for May would be a ship body and a gynoid body that she can use on free days to visit with her boyfriend, if things go that way.
Nonetheless, I think that, given how things are going in the strip right now,
I think that May would be happy enough with a body as human-like as Roko's original chassis and I also suspect that will turn out to be the limit of which that Roko can squeeze out of the authorities.