I understand how the Pakleds nearly obtained photon torpedo capabilities from the U.S.S. Enterprise, but that kind of ruse wouldn't work on the Romulans. Romulans are much less kind than the Enterprise crew, and if the Pakleds had asked for help with their guidance system, at best the Romulan vessel would have sent instructions and left.
Yet the Mondor that the Enterprise ran into in 'The Samaritan Snare' seemed to have multiple Romulan systems. I looked it up, but can't find any reference to a Pakled encounter with Romulans at all.