No, it would not work. Ebay gift cards can't be used to buy anything on ebay in the gift card category.
Per ebay gift card terms, " The Gift Card may not be used to pay eBay selling fees.
The Gift Card also may not be used to buy eBay Gift Cards, third party gift cards, gift certificates, coupons, coins, paper money, virtual currency, or items generally considered to be “bullion” (for example, gold, silver, and other precious metals in the form of coins, bars, or ingots).
Also, ebay is the one gift card to
NEVER buy on a 3rd party website. Ebay is known to freeze gift cards on a whim and demand a copy of the store receipt in order to unfreeze them. I wrote about this here on the disboards a while back when this happened to my sister and it took around a month of fighting with them before I finally got it unfrozen.
https://www.disboards.com/threads/updated-disney-gift-card-deals-and-more.3784942/post-63628434