I dont think Nissan were old school enough to terne-plate the fuel tanks (though they did lead wipe roof seams and braze on drip rails on the 120Y...)

I'm also after information regarding converting the system in my sedan to use the E85 dellorto's im going to be running with the SSS spec A12 i'm building for my replica.

I'll have to ask my mate tomorrow. He had an A12 running E85 in his 1200 coupe that he uses for sprints.

Get youself some flat top pistons and a lumpy cam if you haven't already. You need to lift your compression ratio to make better use of E85.