Edit: Thanks to easilydistra for the trade :)
Also, if no one has a large Lunette they're willing to trade, does anyone have experience comparing the small Lunette to a small Diva? According to the size chart, there's only a 2mm difference in width, which I'm not sure is enough to fix my leakage problem. The large Diva has the same width as a large Lunette (5mm wider than my current cup) so would I be better off getting a large instead? I don't think the length would be a problem for me since my Lunette rides up pretty high anyway, so that may be a trade option as well.
As previously mentioned, I've used my cup for 3 cycles (documented in this post. It's a small Lunette Selene (the blue color) which was limited edition so I'm not sure if you can still buy them from the company. I normally clean it with isopropyl alcohol in between cycles, but I would boil it or perform any other cleaning methods you'd prefer prior to shipping. After you post a comment here, I will contact you in a private message with shipping information, etc. Thanks!