No experience here but by following other Bell related conversations, you might be borderline OK with a larger dish.
As per Satbeams, you're J U S T outside the beam by a few miles (req. is 27" dish). I'd say a 33-39" and you shouldnt have a problem.
I'll second that opinion. I live in Lancaster and have a 30" dish which works fine until it starts to rain. A 36" dish would probably make it more reliable.