I am using the 505 HD receiver in my 5th wheel with the double lnb on the HD Nomad. I get as much HD tv as I care to have. Your 630 will work with the new lnb you put on but the HD channels on the new satellite will not come in very far south of the border. The Motosat controllers have had some issues for a while with the Shaw birds. The new RF Mogul controller sounds promising and the hardware on the roof can remain as is. I may go for one once I find out a little more about it. PM me if you want the directions for manual switching setup.
Roy
2011 GMC 3500, Duramax, Allison
2008 HitchHiker LS 29.5 FKTG with most options