Long story but just imported our 110 Puma (2016) and the importer took off the factory fitted tow-bar. During the process they have stripped the M16 threads (lower 2 holes) in the crossmember. What repair options should i look at? Is it a full backing plate can i get the holes re-drilled and tapped? or are they captured nuts? There aren't any peep holes to look in from the front or bottom. Thanks for the help