I have some of the mints, but it's too far to send them. But just in case you don't already know, mints do and will cross pollinate.

Mints states:

Different varieties of mint should be planted as far apart as possible, as true mints hybridize easily, cross-pollinating when in close proximity. The resulting hybrid combines the characteristics of both parent mints in a way that may not be favorable. If you grow both peppermint and spearmint, start them at opposite ends of the garden in order to maintain the integrity of both.