Heya
If you were to level your slayer to I believe level 65, or whatever level it is to kill Aberrant Spectres, you can kill those. I get 45k xp/hr and around 210-240k and hour there. Plus theyre never too crowded. Good luck
You have to get pretty lucky but you can make good money there and in a few days of you could get one but I would consider soloing bandos if you dont get your own plate you will probably get someone worth as much as a plate.