I really like this, is there any chance of something like this for light to medium sized starships or would it be much too much work

The code would support changes to almost any type of vessel.
But I don't think most of those share enough common features for it to work particularly well. With the YT's, they all share certain elements (Circular main hull, Mandibles, Cockpit, Engines), so swapping them out was pretty easy and looks okay. I'd be worried that for other ships, they'd either look weird, or all look too similar.
But if you've got some images you could point me towards of what kind of ships you mean, then send em though and I'll have a look, you may just inspire my imagination.

That is a fair point but a lot of ships share similar shapes and many of them don't look weird to the point of looking wrong (the last two wrong looking ships I saw were both cannon designs), I'll give it some thought and get back to you, as a general thought though I like rectangular and cylindical main hulls and of course the dagger is always good if you have room for it