No way to know or predict if and what size dish might receive out of footprint. Best to check local hobbyist to see if anyone has experience with receiving this satellite.
Beam pattern maps are typically a computer prediction/estimation rather than based on actual mapping, the directional pattern may have oddities and side lobes. Global coverage footprints have a much better chance of being received beyond the footprint. I recall a Tele Satellite article 8 - 10 year ago about a man in Brazil with a 8m reflector and super-cooled LNB receiving KU-band Austra/HotBird with European footprint.