yes new surrounds for 24w100’s is not a big deal. Happens all the time.
The proper surround is available, and that woofer is still world class.
When I did a pair of 30w54’s, I obtained the original proper surrounds from Germany. The seller was in Europe, as expected. Search out the original surrounds, or make sure the person who does them is educated enough and enough of an audiophile in orientation, or perfectionist enough, that they do it right, by using the correct surrounds.
The proper surround is available, and that woofer is still world class.
When I did a pair of 30w54’s, I obtained the original proper surrounds from Germany. The seller was in Europe, as expected. Search out the original surrounds, or make sure the person who does them is educated enough and enough of an audiophile in orientation, or perfectionist enough, that they do it right, by using the correct surrounds.