Unless I'm misreading this, it's $19.78 / yard for 4" wide size at digikey. If the link doesn't work (lots of tokens in there) try searching for "9703 3M tape

Unless I'm misreading this, it's $19.78 / yard for 4" wide size at digikey. If the link doesn't work (lots of tokens in there) try searching for "9703 3M tape conductive" as a starting point. https://www.digikey.com/en/products/detail/3m/9703-4-X36YD/6820572?s=N4IgjCBcoOw1oDGUBmBDANgZwKYBoQB7KAbRBjAA4AWANhAF0CAHAFyhAGVWAnASwB2AcxABfAmGrxoIZJHTZ8RUiGoBmAAz0mINh279hYiTHoy5C3AWKQyAJgCsDrdUYt2kLr0Ejx4OAiyqJhWyrYgamAadhoAnG66Hl6GvhKxaoEWIUo29hrULgl6ngY%2BxqrpmcGK1ipq6g60GkVJpUZ%2BtLHx5tWhuRGUsZTDLfre7QQwGs098tm14WrDDo6jJeOp4BowdlVzNWFkBQ6uOsXJZX5gQ91IvTkqzWetG%2BUAtBCzlg-h14x%2Bb1cX3mhxAQ0i-wIbwce2%2BCzItAgDFEfl24ViUwyyKAA https://www.digikey.com/en/products/detail/3m/9703-4-X36YD/6...