Trade only?: Yes, you go first.
If you had only regular Leeroy, you would get 1600 dust free
If you had both versions (crafted the golden one) you would get 3200 dust free not 4800 as you only get dust for 1 copy of the card
Essentially if you do nothing you spend 0 and get 1600, if you craft golden then dissenchant golden you spend 3200 and get 3200+1600 (total 1600)
Yes this is what I meant. So it is a profit, 1600 dust.
I don't understand how don't you profit from it? If you have a regular Leeroy and craft golden one, you will get 3200 dust once they go HoF (so far zero profit) and when you dust the golden one afterwards, you get 1600 dust, no?