So...
Magic-Blooded Azurin Human Paragon 3/Incarnate 3/Umbral Disciple 10/Incandescent Champion 4. Your relevant feats are Open Greater Chakra (Waist), Aberrant Blood, Wild Talent, Psycarnum Infusion, and Inhuman Reach. (For now.) Your relevant equipment includes a Tome of Leadership and Influence +5, a UMD-boosting item (+20, say), and a Minor Schema of Extended Power Leech (CL 20). Finally, your relevant skills include Use Magic Device and whatever paltry stuff is necessary for UD and IC.
So you'd shape your Strongheart Vest (ML 3, who cares), binding it to your waist. With one point of essentia invested, this gives you ability drain resistance 2. Now use the Minor Schema on...yourself. So you "take" 40 rounds worth of ability drain and transfer them over to yourself. Note that you don't even need to be nongood to use this; it's only sanctified spells that have the analogous restriction.
[spoiler]If you're leery of that, given the ambiguous language, try this instead: Buy a Shield Guardian. Gate in an Elder Brain using a Candle of Invocation. Use some scrolls to perform DCFS on it thrice, to grant it True Mind Switch, Psionic Restoration, and Metamorphosis as bonus powers. Polymorph the Shield Guardian into something that's not a construct; it loses its construct traits which grant it immunity to mind-affecting stuff. Order the Elder Brain to True Mind Switch (give it a Power Stone) with the Shield Guardian. Now you have the Elder Brain on a leash, yay! (Do what you will with the shell of a body that's remaining; try Imprisonment for safety.)
So when you wish to gain lots of reach...you can order the Elder Brain/Shield Guardian (EBSG) to Metamorphosis into something that's (again) not a construct. Tag it with Extended Power Leech; it can simply heal the ability drain with Psionic Restoration.[/spoiler]
Charisma: 20 base + 2 Paragon + 5 Levels + 5 Inherent + 40 Enhancement = 72 (+31). Which gives you a modified essentia capacity of 35 when using Incarnum Overload.
Reach: 5' base + 5' IR + 175' Kiss of the Shadows = 185'.
I'm sure that we can improve upon that.