Dragon Defender over DFS due to RS gold of the atk bonus. Since ur low on cash expl ring zerker because the prayer bonus cuts down the number of ppots available.. Plus the emergency free run, teles and the ability to switch the crap you get is very good.
If you're anything like me, and would rather grind melee: Torags plates, Torags legs. Those 2 together cost approx 800k-1m.. They will degrade to 0 in 15 hrs.. Together they'll cost 170k.. Imagine that you're buying Dplate.. D plate will cost you approx 9m? Torags provide 2 times more defense (Iirc it's the most effective defensive armour available).. The best part? Its frikkin sexy!
If you have 9m spent to repair torags, u can take advantage of them for an overall total of 843.75 hrs. (more than enuff time to max melee , and buy OSRS gold maximum slayer )... This is the most potent shizzle that you will receive.. It's cheaper if you have an armour stand at your house. I don't see why you wouldn't want to make use of them.