I just saw this - dont know why I missed it earlier. Yes,I stil have the FloScan. The other guy didn't want it as I have the one sender unit for it and he believes that diesels need a return fuel sensor also. I dont know whether it was a petrol unit that the PO used for diesel, or whether it is a diesel unit. But it was working fine. I guess that provided it is installed after the fuel pump return fuel line then it is actually measuring the fuel used.
Anyway, I wont be back in Australia until late Sep. Contact me again then if still interested.
Cheers - Brian