I have a second dish 500 that i am going to put up. the dish 500 originally had the lnb that was the one piece lnb. i am wondering if i buy the ones that are separate (http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=32843&item=5705237325&rd=1) will it fit into the same plastic piece that has 119 and 110 that attaches to the main part of the dish.