thinking of selling my truck how much should i ask for it?

04 xlt supercab 5.4 with tow package, 90000 miles, 20" boss 315 wheels with 305/50/20 tires, s&b cai,roush grill upper/lower, gryphon with custom 93/87 tow tune, python remote start, undercover bed cover, bed rug, flowmaster di/do muffler, chrome step bars, infinity sub with audiobahn amp, husky liners front and back, all maintenance records, plugs have not been changed

i know dealers won't price aftermarket parts but going to sell to individual.

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Private party book on it is about 10 grand.