In reply to jeffers696:
Another canoe-foot person here (48)...
La Sportiva Trangos, Nepals and others in the range all readily available in 48 from Cotswolds etc, Scarpa range too. I've never had trouble finding boots, in fact I often find bargains in Rock Bottom and other outlets as they are end-of-line leftovers.
As for crampons you may need an extension plate for 48 and above. My Salomon B2s needed the extension bar but I can use the standard one with my LS Nepals (G12 crampon).