If I get my feedback for my first swap in time (and I think I should) I may be very interested in joining this swap.
Though, I do worry that the fact that I'm a size 28 would make any wearables a bit of a larger undertaking for my partner... would that be a problem? Or am I just being unnecessarily paranoid?
you're being unnecessarily paranoid! I'm sure any swapper will be willing to completely accommodate their partner no matter what!