If you don't already have them, then you should purchase a pair of barrow's gloves. They're very strong in the glove slot and extremely helpful as RS gold a result. It is also recommended to purchase a pair of ranging boots You should purchase snakeskin since ranger boots (12M) do not fall within your budget.

The shield slot is likely to involve an illuminated god book. Zamorak's book will cost an unholy 22M an even better alternative is armadyl's book of law at 1.7M that's just two less ranged offenses, however it has defensive abilities and once you've illuminated it, you'll be rewarded with a large prayer bonus.

Your cape should be ava's unless you're doing something that will not be useful, like shooting ogres within a cage. In that case you should wear your most elegant ardougne cloak or a different one that comes with offensive or pray bonuses. Dragonhide red, of course is not recommended unless you wish to become empty. I hope this can help!

As I examine your charms, I'm not certain you'll be able to make 70 without having more charms. If you're looking for golds using barker beads you'd require 1840 gold charms for 160k xp, greens are 1620 using Ibis Crimsons 569 with the blues and other plants which you'll likely like to keep but it's 343 with the kyatt's or graahks.

For the front, that's roughly 1.5m for toads, 4.7m to ibis 2.5m for plants from strangers as well as 3.4m on Graahks (4.4m for Kyatt). A mix is somewhere in between. If you're lucky, you'll make back around half of that through trading the bag. However, there is one exception: blue pouches that could earn your money back, but you'd have to find the best source of blue charms.

Personally, I think you'll be very difficult to get less than one million dollars and more likely, you'll end up spending 1.5-2m for the next three levels. Summoning is one of those bite your knuckles and don't be too concerned about price.

It'll be worthwhile to get those levels, Yip, Tort and Bat are all good familiars, but I'm unable to think of any cheap way that doesn't require an excessive amount of prep time. Abyssal Lurkers (Which requires you to farm abyssal animals yourself to cheap OSRS gold get the abyssal attraction) and Graahks/Kyatt's is the only real-money selling familiars I've seen below the age of 66.