I think non-Ardents can do this.
Torc of Power Pres - gets 1pp discount
Earth Sense feat, Earth Power feat, Wis 13, Con 13 - gets 1pp discount
Midnight Aug feat from Moi - can get only a 1pp discount on a level 1 power, and you have to augment it by 1pp first, before getting the discount
all together, the Mid Aug trickiness has the mandatory 1pp aug, covered by one of the other two discount
Linked Power metapsi - needs the psifocus blown to work, and then recharged via Psi Meditation feat
So that's 6 feats = ouch, but doable. And the Torc is both pricey early, and hard to get 'til later.
I'd want a Hustle Linked Hustle Twinned (and discounted) custom item, getting extra Move Actions in there, to get extra PsiFocuses to blow.
Doesn't get an Exponential Synchro loop going, just a big linear pile of extra actions.