Sounds like you really want a Mystichrome, so go for it. That said, I would peruse your current OW Cobra and mods, and ask yourself if you're very satisfied with it at this point. Because if you buy a used Mystichrome you might not be as satisfied overall with it, other than the color. And that will probably make you wish you kept your OW Cobra. On the other hand, if you're so-so satisfied with what you have, a change might be a huge thing for you, plus you get the color you've always wanted.
Check out all the Mystichromes you can find that are for sale, after deciding the mileage and price range you want. Don't compromise on the mileage (and mods you'd like/not like). If you truly want one, one will eventually show up that meets all of your wants.
Check out all the Mystichromes you can find that are for sale, after deciding the mileage and price range you want. Don't compromise on the mileage (and mods you'd like/not like). If you truly want one, one will eventually show up that meets all of your wants.