Well here are the results:

https://bhauction.com/en/auction/tok...nda-nsx-type-r

https://bhauction.com/en/auction/tok...B4-honda-nsx-r

The NA1/92 R sold for 30.8m yen = £223k = about £300k after taxes and shipping
The NA2/ 02 R sold for 48.4m yen = £350k = about £465k after taxes and shipping