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I'm not affiliated with them, but have often bought from them with excellent service. Prodigital2000 are selling the K-S2 kit at 7694 USD with free shipping.
Pentax K S2 Digital SLR Camera KIT White With DA L 18 50mm DC WR Lens 12073 0027075187511 | eBay
All common colors seem listed.
and in case you missed it, yours truly is willing to purchase your kit lens from you if you're only interested in the body!
https://www.pentaxforums.com/forums/37-wanted-items/289661-wanted-buying-k-s2...-kit-lens.html