This is a good question. I don't know if the peeps would regard this as 2 different rides or 2 of the same, but I suspect they'd see them as 2 separate rides. I don't know if there's a way to determine what they think on that subject, though.,
However, changing type and/or order of ride affects its EFN. For some of the more complex rides, the order matters because some moves flow into each other more smoothly than others, so doing them that way will reduce nausea (often a problem with thrill rides) but doing them the other way will increase it. Adding sequences (or changing short sequences to long sequences of the same type) increases duration.
So, if you have 2 of the same basic ride, but they end up with different EFNs and durations, I'm pretty sure the peeps will regard them as totally separate and unique entities, even though they both use the same ride model.