Thanks to the recorded history and receipts, that is a very collectable piece. The upgrade history adds to its appeal rather than detracting.

I'll disagree with Mac128 partly about restoring it as a 128K, which would require a replacement first generation logic board, first generation rear case bucket, 400KB floppy drive and stubby keyboard. If the parts are from the right period, it could be restored to original specification, if you apply the rules that apply for historic cars. The restorer would need to be honest about the process and history of the Mac, so that there was no deception about provenance.

If I bought that Mac, I'd be tempted to restore it to original spec if it was the only Mac 128K that I would ever own -- but I'd keep the upgrade bits with it to maintain continuity.

It's pity about the distance and exchange rate, because I really fancy it.