In search of a Lowrance GPS puck. LGC-12w and LGC-4000

Hello Fishing friends.

I currently have a X15 (black and white) Lowrance and a First Gen DHS7.

I'm in surch of the GPS Modules for each unit.

My X15 requires a LGC-12W puck.

My HDS7 requires a LGC-4000 puck.

I know many have upgraded to the new Point1 modules.

If you are willing to part with a puck for a reasonable price. I would greatly appreciate it.

Thank you for reading.