I've got a JB4 available, no bluetooth so I'm not sure if that's a dealbreaker for you or not. You can purchase it from BM directly, I'm listing mine for less than $500
TBH I didnt feel that BT was necessary, I only ever plug in with a fire 7 tablet to either change maps or take the occasional log on some pulls.
Let me know, I'm covering shipping and paypal goods and services!