Bad part is, cuz of lag, even this fails from time to RS gold time, and I get hit. If I don't have great def, the few seconds of lag wud mean the loss of half my bank lol. If I do change on my pray continuosly, it would finish by the time that I get 2-4 kills. (blue drags) and with pros, id get a few extra moments, and rly wudnt have the ability to keep potting pray cuz its expensive too... However ty anyways. I would certainly suggest doing the Fremminik Quests. They are great fun and provide you with a Neitiznot Helmet, which is most likely one of the best helmets . Secondly, as you've got a budget of 1mil I would recommend doing Barbarian Assault so you can get the Fighter Torso. It does not cost any money, it gives excellent Strength bonuses and seems alright.
Dragon Platelegs is great. Amulet of Glory is great. Ring of Wealth is great. Another cheap yet powerful choice is the Explorers Rings. Obby cape is good. Dragon boots is good (when you buy them) For your weapon I would definitely go to get a whip and/or a Dragon Scimitar. Monkey Madness is needed for the Dragon Scimmy and it will take a while but it's definitely worth it for training Power. Whip on the other hand is excellent for attack and defence.
Dragon Defender is great (after you FINALLY get it). Also for a fantastic set of gloves I recommend doing RFD for Dragon/Barrows gloves. Heck even Mithril gloves are very excellent. For them you need to do Recipe for Disaster, and I certainly recommend you do this to the highest you can...
Imo, slayer isn't any where near as good as it used to be (just appeared what happened to the whips). Camping at abby demons for 75-125+ kills only for a 900k-1.5mil fall?? Now to get a 3mil drop would differ. Slayer is an enjoyable way to train melee stats if you plan on doing coaching, go for it. Its a wonderful way to split the repetativeness of instruction on a single creature.
And the principal benefit in slayer doesnt come from the big drops, its the little ones adding up over time together with clues should you do them if you're smart herb runs involving tasks. Well your best, I dont have 85 slayer. There has been accounts of not obtaining a whip drop in 4-6 hours of buy OSRS gold continuous slaying. Any help site you visit will list it as one.