I also would recommend checking out Africase ( www.heritagearms.net ), and what they don't make as standard, they'll make special for you, both with or without a flap etc. I have a friend that recently had them do so for his 470NE, and the quality was of course top notch.

I used 2 Africases while hunting tuskless elephant in Zim this summer, and was very pleased with them:

Aleko, the owner of Heritage Arms, is also a very nice guy to deal with, and will go out of his way for his customers. Something rarely found nowadays!