A quick web search finds: http://www.guaranteedparts.com/picture_library/BlueStar/Parts%20identification%20for%20Ranges%20and%20Cooktops.pdf It lists a whole bunch of replacement parts that can be bought easily and cheaply from multiple sources. In fact, I believe the parts frequently drop-ship directly from Bluestar.
As far as I can tell, the oven door hinges are replaceable. Whether they are easily replaceable is another question. I haven't tried myself yet. A new un-painted door for my oven only costs $400. So, that might be an easier solution of I was looking at replacing the hinges.
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replacement parts
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