Nintendo's online store has em for $18 reconditioned. That's the motion plus with a jacket. $25 if you want them to throw in a chuck, but you said you're good with that.
If you can find it cheaper from someone on here, go for it, but don't hit the bay.
if you can obtain an early Wii (with the four GAME CUBE controller slots) and at least a couple good GC controllers, that is the ultimate way to play BRAWL, IMHO...
As much as I love saving money, I prefer buying outright since I've already trimmed my collection down a ton to what I want. If you're willing to take $$$ let me know what you want to sell 2 of them for, whether they be both motion plus or regular controller .
I have no problem accepting Paypal... The issue is for what I want, plus shipping, you could likely find them locally at Gamestop or Craig's. So I offered them for trade. Not trying to be a jerk, only honest.