Source for 2SK3497 and 2SJ618

I’m looking to purchase 8 of each 2SK3497 and 2SJ618 MOSFETs. I do not need them matched. They must be real and not the fake ones available on eBay. I’m willing to pay a premium. I’m located in Illinois United States. Please PM me your offer. I’m also looking for information on what equivalent parts could be substituted? If anyone has any information, it would be greatly appreciated. Thank you all in advance.
 
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