>>32927905With the 4 Colosseum berries, you can easily get enough stats to do Master in every contest easily. you may need to max out the 5th stat on another pokemon to get the scarf though. Problem is that's 60k Poke Coupons and Area 10 gets you 1,200 per run. Also, if your copy of RSE has a dead battery, you can't grow them.
I'd recommend just cloning the berries in the Battle Tower in emerald, that's what i did.