on wholesale hardware prices, you have the same margin as any shop. But if it are retail prices, you've got none.
Anyway, go to dell.com or any other site that offers the same flexible configuration options and assemble a machine that resembles yours as much as possible. Then see the price including 1-year support and warranty. Subtract $150 and that's the most you can ask without support and warranty.
Kees
I was wondering if I built a computer that cost me around $700 to build if I could sell it and make a decent profit?

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