While I'm sure you don't want to hear it....don't go cheap on your stands. Buy solid stands the first time around, and you'll never have to re-buy it. I owned (and still own) a few of the impact "heavy-duty" air-cushioned stands, but I mostly use them with reflector holders, as I no longer trust such lightweight/aluminum stands to support my costly lights/modifiers.
I'd recommend getting stands made by avenger or matthews. While the thin aluminum stands can technically support the weight of your einstein and modifier, once you have wind from location work, that can drastically affect how much force is being applied to your stand. Additionally, features like levelling legs are priceless on location, as it seems that every location necessitates placing a light on a slope/uneven surface.
One other option would be the Lowel Grandstand (about $150) as it's got a leveling leg and is a very well built aluminum stand.
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