You have quite the assortment! Unfortunately, I don't have much in the way of houseplants to trade that you are looking for. I have a Wandering Jew plant, and an amaryllis (and possibly a bromeliad pup) that I might be willing to trade...plus a whole slew of my own assortment of seeds, too. I hope to post a list of my available seeds soon, too.
I also just submitted an idea for a site-wide seed swap, so I'm hoping to hear back on that soon. Maybe that would help both of us out.