We export to Canada/Mexico/South America/Middle East Asia, Something with mixed VIN's on the frame I would think could be a tough move across borders but if they have all the documentation it shouldn't be a big deal, not 6 months anyway.
That thing needs Qudrasteer for sure!
We build 4-5 Duramax SUV's per month over here, we only spend 250-300 miles with them to ensure that everything is OK. The best I could say is request a car fax on the SUV and on the donor, I can tell you that had the lowest miles of any "used" donor we have ever seen, 25K when the truck was here, our records show it was a straight build ie
uraBurb / stock / no-tune then our distributor added a PPE.
Remember you can have your cake and eat it too, if you bake the right kind of cake
Duramax SUV Builder