There's a section in his guide that specifically says Inventory for Whip It gives a very easy to understand breakdown of what to take, and it includes pictures.
What do you mean by "grinding qualities"? If you mean it has grinding than just close your eyes and point at a free MMO list, honestly. Well, lately I've been seeing a lot of games that don't have any grind to them.
I'd use Superheat, it's fairly fast and you get lots of Smithing experience on the side. You'll break even using mithril or steel, but it's a lot faster to use iron or silver or gold(expensive for gold). If you want some charms, you could start bursting at 80, although that might run you over 20m.
Gargling is not enough to sustain you for even a week. He probably did survive 2 weeks(although this is still difficult) but not 70 years. And I can't believe that these scientists even regarded some crackpot saying he's never eaten or drunk(drank, drunken, w/e) anything for 70 years. I'm guessing those scientists are really bored to actually look into this.
That was pretty much what my conclusions came too as well. Does anyone actually know what the cost of recharging is? Cash in f2p is useless anyway, except for buying things to exp, rune ess, coal, big bones, etc. I assume that it's 400k, but I can't be entirely sure.