Thanks for all the help MC,
don't worry anymore for this issue. Here's what I did to solve it and the resume of everything:
-The 2 items that were repeated models were actually repeated items (I learned this from customer so no biggy there), the items where there and the final total of items were 834.
-I noticed that after the basic att import all the attributes were in place, just not sorted.
-Since the detailed import failed few times (100%), I went to the attributes sorter feature and click on sort all attributes for all products, and that made the sort issue to disappear.
-Then last I exported a detailed att export, I downloaded it and did the "Please Select" changes on the spreadsheet and then uploaded without any issues.
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On the new site all the numbers are searchable, so I will see if downloading and uploading the full list on the old one will solve that issue there.
I believe that the little db patch you gave me should be included on your ReadMe file for next version because that really would be a great piece of info to those that don't have/use model numbers on their items and want to use EP from then on.... If I got that piece of info 3 weeks ago, my customer wouldn't have gone for so much trouble and time creating those on the datasheet. It's GOLD info.
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