More Train Car Woes - this never gets easier

Hi Guys, I am trying to create a whiskey car - a goods car with the boxes replaced by barrels, like this -
I have gone into blender and taking a barrel from the winery, replaced the boxes in the version 2 goods car. I have assigned the barrels to the various vertex groups that the boxes were assigned to. I have taken the strange file that blender or niftools exports and added the Nistringextradata and Nimultitargettransform lines under the MD line. When I test it in nifskope the barrels will jump around when the kfs are run, but when you reach the empty car kfs, the barrels remain. When I ran it on my test map, all I get are carloads of barrels riding back and forth - no load or unload. I have tried evrything I can think of but I don't know why I am getting this result. If someone has the time to take a look at this I would appreciate it. I am just out of ideas to try.
The attached file has the current iteration - test11 (though there have been several more). I have included in the attachment the goods kf files, the various sections of the xml files, the icons for the goods and the whiskeycarview files. I have also included a whiskey_car_test11_v1.kfm, but that is nothing but a goods car. I started with version 2 for this because the nif seemed a little simpler layout in the v2 file vs the v1. I have also included the goods_car_v2 nif and kfm files just for easy comparison.
Thanks very much for any help you can give me. I am just stuck on this.
Repaired
I have gone into blender and taking a barrel from the winery, replaced the boxes in the version 2 goods car. I have assigned the barrels to the various vertex groups that the boxes were assigned to. I have taken the strange file that blender or niftools exports and added the Nistringextradata and Nimultitargettransform lines under the MD line. When I test it in nifskope the barrels will jump around when the kfs are run, but when you reach the empty car kfs, the barrels remain. When I ran it on my test map, all I get are carloads of barrels riding back and forth - no load or unload. I have tried evrything I can think of but I don't know why I am getting this result. If someone has the time to take a look at this I would appreciate it. I am just out of ideas to try.
The attached file has the current iteration - test11 (though there have been several more). I have included in the attachment the goods kf files, the various sections of the xml files, the icons for the goods and the whiskeycarview files. I have also included a whiskey_car_test11_v1.kfm, but that is nothing but a goods car. I started with version 2 for this because the nif seemed a little simpler layout in the v2 file vs the v1. I have also included the goods_car_v2 nif and kfm files just for easy comparison.
Thanks very much for any help you can give me. I am just stuck on this.
Repaired