Selling Battlerobe hood & bottom for a total of 9.99$ + trade price on runescape, this will make you profit since they're higher in street, bottom is aroudnd 6m street. And hood 1.5m, they're together under 3m in trade. This will get your junk away.

If you don't want to sell them you could keep them. If you get the robe top & a staff of light all that items combined saves 50% of all runes you use in all combat spells.

Picture of the items: