Probably around $6k. Just a guess since they'd want a lot of breathing room. Just did a deal on my FIL's Jayco, similar model, one year older. Trade was at the $6-7k mark. You might could get a little more though depending on where.
John and Rebecca Dickson
Emma-8 / Little John-5 / Iva-1+
2013 Ford F-350 Lariat FX4, CC LB PSD, DRW
2015 Jayco Jay Flight 28BHBE (#8)