I have 3 Aspen EFD's (non-MAX units but can be upgraded) that were removed in working order. With mounting tray, connectors, config modules, ACU, RSM antennas, and a foot or so of wires. Sold as-is, no 8130's! $9,000 for all OBO or can split up.

1. Aspen EFD1000 Pro PFD P/N 910-00001-001, S/N 25284
2. Aspen MFD1000, P/N 910-00001-001, S/N 25285
3. Aspen MFD1000, P/N 910-00001-001, S/N 25286.

Can you tell us what version of the software is in the Pro 1000 PFD, and if it has the extended battery which allows use without a backup AI?

I think you need the Max units to remove the backup AI requirement, and that configuration doesn't require an external backup battery.