I met a guy a few years back that has been keeping a registry for about 25 years. I believe his registry is at about 66 NL320s.
This one was added 3 years ago
About 2 years ago there was a pretty solid disassembled project in Seattle for 6k.
I have too many projects right now so i passed. 4k i may have pulled the trigger.
IRS conversion 2L Berg 5 would be the ticket .)