This is my best advice to you even though you are offering someone to hold your UFO so its safe you wont get scammed it isnt ideal. There are loads of scammers and they may steal your UFO and then what would you do? My advice is to make one yourself or buy one this way the Aether is there whenever you need it, and its there if you ever wanted to use it for alts. You also need the aether to complete getting the critical weapon from Cairo. So it is beneficial.