Herschel Walker UGA Game Used Jersey & Helmet

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Does anyone have a rough idea of how much a Herschel Walker University of Georgia Game Used Jersey '82 (Home, with a lot of wear) and/or a UGA Herschel Helmet '82 (With over 115 stars and a lot of wear) would be worth. I have both, and have been offered a pretty good amount for one or the other on numerous occasions. I was just hoping some of you guys would have a more accurate idea of the value of both.

Thanks for your help