Edge 705 - excellent condition (SD door is held on with Bluetac tho)
City Navigator NT maps (2016) on SD card
Garmin HRM
Garmin GSC10 Speed/Cadence sensor
Two bar mounts
Edge/Quarter turn adapter.

£50

Would my os maps for my 64 work with this?

I *think* so. I assume they're on a SD card?

Maybe someone has tried it previously. I'm not sure if Garmin still "locks" the maps to a registered GPS device (though there are certainly UNLock utilities available)