I saw the car in 2004, I took the photos of it when it was 918 orange and it was missing the original L24 back then. In fact I was offered to trade my 72 240z for it, as I wanted an early car, but non matching no.s engine was a factor in why I said no. Also it was in need of rust repairs and paint and I was happy to have a running driving 240z.
It was fairly solid back then though, as far as 240z's go. It was also pretty original. Aside from the missing engine.
I believe it went up to around $80k at auction but reserve was set higher at the time. Think it was via Lloyds.
IMHO for an early 240z it represents good value, but I'm not sure as to the quality of its current restoration.