Not too sure about how one would go about this if the DB is exported as a single file...but if you export as separate files (so that each video gets its own NFO) You can certainly label the <set>, <sorttitle>, <trailer>, <thumb> and <fanart> locations... in fact you don't have to even specify the thumbnail and fanart locations as long as you export as separate files...then all you need to do for it to be scraped that way for on a new device is scan your original, or a copy of your DB with all the NFOs, thumbnails, and fanarts...I know exporting as separate files makes the DB seem a bit less organized but the function far surpasses the form.
PS, please help the comunity and add any custom made fanarts/thumbnails to
themoviedb.org so we can all bennifit from your work
PPS, I do not know of a way to specify set fanart and thumbs...but if you get your DB perfect...you can just copy your userdata (from the pic I think you are using windows) C:\Users\%Username%\AppData\Roaming\XBMC\userdata ...this will not only have the same sets, set fanarts, and set thumbs...but also your skins, skin settings, and add-ons.