I wouldn't give up on the idea if you're a hard-core DIYer. Many people here (Fronkey comes to mind) have developed techniques for managing down with little or no mess. I personally like to do all my down transfers with the down WET. Easy peasy (except for measuring). For that, I measured 1 oz. of dry down, wet it to see how big it was (tiny!) and then made similarly-sized piles for each baffle. Good luck!!!
's Fronkey's video on how he does it.