I was thinking to setup a marketing place just for to tracé with members in your own cclan the trading trade will be fixed by example:
gold:elix -> 1:0.5
elix: gold -> 1:0.5
dlix: elix-> 0.1:1
elix:dlix ->1:0.1
dlix:gold-> 0.1:1
gold::dlix-> 1:0.1
market place will be haveing3 lvls
lvl1 can hold 5% of total storage a account can hold
lvl2 can hold7.5% of total storage a account can hold
lvl3 can hold 10% of total storage a account can hohold
when a market place get attacked he will lose the resources that he is trying to ssell the seller or buyer has to click on the market place to pick up the traded resources asoon he logs in if he does not logs in his resources can also be taken awaway the market place will not raise the max amount of resources the account can hold it uses the room that the storage a provide.
Maybe a option can be that the market place can defend it self with a low atking rate and range

