If you check patt of D grade fists and 2h swords/blunts you will notice it is higher than D duals (107-112). So it is better to get eg 2h sword than duals. It is also much cheaper. Also it is good as lvls go by to own a weapon for which you have masteries. So choose wisely. It is not worth paying so much as 35 mil for any D weapon. You will need a lot of adena for C grade too, which is not that far.