Re: Am I asking too much??
A rather sneaky way of posting an ad in the wrong section... but I'll bite.
The Sabians are worth maybe $275, so I'd sell them separately. That will bring the kit down to a more (perceived) attractive price, and you'll probably get closer to what you want.
A complete, ready-to-go kit is not necessarily appealing. A lot of drummers have their favorite cymbals already, and just want more drums without paying for Sabians they won't use. Likewise, someone may want those Sabians, but not the kit. Keeping everything together scares off all of those who might otherwise buy one or the other.