jb, your question is more than welcome here, and I've owned at least eight Bugeyes myself, but this forum is focused on big Healeys. There is another forum within the British Car Forum titled "Spridgets," and you'll find more people with more experience with Sprites there.
By the way, the biggest negative of converting to wire wheels - apart from the cost - is that wire wheels are a pain to clean, and those simple and classic pressed steel wheels with their elegant chrome "AH" hubcaps not only look great, but they require mere moments to clean. Think about it: 240 spokes (four 60-spoke wheels) take time and meticulous attention to get clean, not to mention the hubs and outer wheels, and the cleanliness won't last. The novelty of cleaning spokes, 240 + 240 + 240 + 240, wears off quickly.
Good luck.