Ralt RT20

[CRD]

Hello all, we are currently restoring an RT20 here in Australia to Formula Holden spec. I know there were only 7 RT20's made however this one does not have a chassis plate or any ID that is conspicuous. I have done a large amount of research and to the best of my ability I believe it may be chassis #2 which was a factory Ralt Honda car that was used by John Nielsen in the 1986 F3000 Championship.

The Australian log book and paperwork from Ralt Australia (Graham Watson, sadly departed) shows the chassis number as 862.

I have a copy of an issue of Autosport where Tiff Needell drove and wrote about the RT20's from the factory team and he lists all seven cars and who they were used by in '86.
I believe that the other 3 RT20's that came to Australia were chassis #3, #4 and #7.
Any info would be greatly appreciated.

Thanks
Rohan