There is a very easy fix to all this, and we do not need new retainers. All we need is a new Vendor we can add to our home (or in the home instance area in general) that holds gathering materials for Gil. This way the "vendor" can hold level 50 gathering items or lower. That alone would free up most of our space. while at the same time not needing to create "a new item" that is a catch up, as well as to not mess up any of the "Gathering" quest, leaves, logs etc.

To those who say that this would mess with the Market boards, just have the default price on the vendor = 1-2k (or what ever you guys think is fair) this way regular "Gathers" could still make money.