Hello guys,
I’ve been a follower of the community for a while but just now really needed some help to get something figured out.

I’m from Portugal and owner of a Rover 111 SL (SPi) , the carburettor has been a bit tricky along with the vaccum tubes, and since i bought it a year ago, i already wanted to to change it to MPi, my main question is about the fuel lines beneath the car, as far as i know the mpi has two and spi only one. And also, the fuel tank as a bit of a difference but can’t accurately find it , so that i know which parts to get or if i even need the full parts attached.
Any help you can give me?
There was a 1997 111 in a junkyard but it was a bit far from me and I delayed the trip and now its already been broken up, so no donor available.

Thank you!!