I have a No4 mk2 already, and I love its sights. Mausers are good canidates for sporterizing, but I have 2 (m48 mitchell's, and a Brazillian M954 in .30-06) and wouldn't think of touching them.
My main reason for wanting the No4 as a sporter/hunting rifle, is its quick bolt action, plus they're pretty accurate. I've checked all of the shops today and none have any enfields. Christmas is thinning the supply..lol