Unfortunately from a little research in the local market, it seems that it is a very common problem and the used-part dealers are requesting a huge amount of money for this specific part, which in my point of view it doesn't worth to buy, since there is a big chance to have a new crack again after some time.
Since this issue is corrected in the new version of XT's, does the new one fit to older models? (mine is a 2004 model).