Apologies if you are still trying to make your trade, but I have been hunting for a Cham for a good while now. I've got Ists for it if you're interested. It is listed at 2.5, but I can offer 3. If you have any Pul's to make any change with that'd be ideal haha.
So 3 Ist for a Cham (2.5) and 2-3 Pul? Open to offers too if you have anything else in mind.
If you're still trying to make your trade feel free to ignore this! I thought it might make it easier on you to trade as well, since Ist seems to be the base currency around here.