Need some advice
What all is included, Joe? In my experience, the market is right around $4,000 for a complete running 6.1, so I think you're priced correctly. But having no first hand knowledge of hearing it run is a concern. Do you have leak down numbers? And you could pull a couple bearings to inspect for a serious buyer (just replace the bolts if you do of course).
Hopefully you have it listed on other sites as well? LXforums, modern Mopar forum, Craigslist, etc?