Please make a possibility to pay the resources during quests anytime not just after you fullfil the "gather" part. I've got full stocks of almost every basic and intermediate resources and it's not logical (and sometimes it is even rather difficult) to make a room first (which sometimes means to make useless buffs and which cannot be done for every resources, e.g. horses, or buy some unwanted resources via market, often with really unfavourable exchange ratio) gather the resources and then pay it "again".