Power Items = Power Anklet, Power Bracer, other EV training items....
Choice Item wise... Generally no. If I were swimming in 89 BP like I was when Eevee_Master was needing the Choice Scarf badly, that's something I will keep off my Player Thread so that beggers don't come doing what they are known to do: beg.
If I'm below ~50 BP, I want an offer for the Choice items, as that are worth a lot of BP.
If I'm at 70+ BP, I'll probably help someone that I trust with those BP.
Now, I believe you want a Choice Band for your new Moveset we and others discussed somewhere else earlier (will not disclose for sake of privacy). I actually have one rotting in my bag. I may use it at some point, but I can also easily buy another should I end up needing one in the future. If you want it, I can just give it to you. (Not trade. I mean GIVE! For Free.)