Just got back an hour ago with 2 bags of the Grande East Coast shredded for $15 per 5# bag. The place is called Sansone Food Products and they're located at 2133 Jericho Tpke., Garden City Park, NY 11040. Tel: 516-746-3696/3696. They are open to the public and the prices are very good. Their website is sansonefoods.com.
I am so ecstatic (just ask my 10-y/o daughter who was with me!) that I finally found a source for Grande cheese here on Long Island! The only place I've been able to get Grande at is JKings in Holtsville but they only carry the 7# brick of the whole milk mozz. I find the WM by itself to be a little too rich and oily. I usually have to cut it with some part skim.
The gentleman that put together my order, John, said I could call ahead and my order would be waiting for me the next time. If you go there, tell John you read about it on Pizzamaking.com as I told him I would spread the word about his business on this site.
Let me know how anyone here makes out it they go there. Thanks!