How to install an Acewell?

So I brought an Acewell 2853 for the zx7r but am having trouble wiring the sucker up. One hurdle I will have to overcome is the indicator signals on the speedo is Left/Right (two seperate) and the original is only a single lamp with seem to earth back through each other. Confusing

I know there have been other members on here that have wired up similar speedos to bikes of similar......vintage. Can you please point me in the right direction?

I've have tried to translate the schematics and attempted to wire it myself but it doesn't seem to be quite right.