I have a solution for you.
Buy a piece of Columi gear that you want for your alt, say a Chest Piece. Then buy an Orange Bind to Legacy Chest Piece. Pull the mods out of the Columi piece, plug them in the Orange BtL piece, and send it to your alt.
You won't get the Set Bonus but you'll have Columi gear on your alt. However, Tionese gear is SUPER easy to come by and you can buy those peices for the set bonuses and plug in your Columi mods from your Main.
This seems like a giant loophole that eventually will, or should, be patched. I've known about it for months but it just seems unintended that someone could be completely rakata geared the first day they hit 50.