Need little help for Galaxy S3

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http://forum.xda-developers.com – Have a question.. I received IMEI error ("0" IMEI) on my Galaxy S3. Tried to recover.. with no luck I'm looking to buy broken one on ebay, so maybe I can try to clone it to my phone... and save some money. Before I'm buying... I have a big concern.. I saw an option in Galaxy Tool to make a full backup/image of phone... Is it possible to extract it (broken phone with good IMEI) to another phone (mine with "o" IMEI error, same model phone) and this way to fix it? Thanks! (HowTos)