I just made the Guyamese LF up on a whim as kind of a background NPC deal. If that's not allowed and acceptable, I'd of course be happy to find a better option from the Wiki. (Perhaps somebody could throw me some recommendations?) It's not a big deal to me at all.
And Edto Xar'Sivaree (I had to copy and paste that name. Wow, what a mouthfull!) asked me about Mantell's Disease already in a PM, and my answer then was as follows; "I did figure that medical science had evolved to the level of curing cancer. I haven't really given it amy deeper thought, but off hand I would probably say its incurable because it spreads and keeps spreading to other parts of the body to the point where even if you cure it your organs would be worthless and irrepairably damaged after the experience."
This, and/or that there will always, kind of like with heavy metals, be residue particules of the carcinogen (in this case from the chemical weapons agent) in your body which would be incredibly hard to flush out from every corner of the body. So it'll lie there and continue to poison the body until the cancer returns, first to your blood, then through that to your lungs, and from there to the rest of the internal organs.
That's my thought off the top of my head anyway.
Now, that's not to say there's not any way to cure the disease, only that there's no way that Rhodes has any access to, at least at the time. Edto suggested that government agents have a brain spider, but that's not something that Rhodes would even consider relying on to safe his life, so that one goes out the window. However, the mutagens of Francia that Aeon Geneworks work on might be an interesting option for a subplot for Rhodes at some point.
And again - I'm not unreasonable and everything I just said is completely up for discussion, of course.
I completely missed the Terms of Service, but I have read them and can say with 100% certainty that I have absolutely no problems whatsoever with them. And if the worst should come to, I will do what I can to make my character die in the most badass way possible, but without any protests as to his ultimate fate.