Broadway, I actually hadn't thought of that yet xD I suppose you could leave any unwanted Pokemon with Nurse Joy, who would ship them to Prof. Rowan through mail >< Old fashioned ways rock.
Strikit, you can catch one per post. Magicarp, really? I only put it there because it's supposed to be everywhere >< Go ahead if you want to, it's your useless one.
Koroc, I can't really tell you what to do, but as I just told Broadway, you can always 'deposit' your Pokemon.
I'll go grade now then.