For anyone that might be interested. I've not seen the unit and have no idea what it even looks like, but Todd's word on the condition is as good as gold. Todd is a flight instructor at the local airport. If you're interested, get back to me and I'll put you in touch with Todd.
Larry Flesner has a Garmin GDL 39 for sale. It works great with Garmin 696/796 or the I-Pad & "Garmin Pilot". With the GDL 39 you receive free weather without needing an XM weather subscription. The GDL 39 will also give you traffic alerts with aircraft transmitting ADSB-"out". Unit is in perfect condition. Unit costs $800, plus $100 with rechargeable battery. Todd is asking $495.00