I was looking at your website and came across this rail, but got a question on it before I pick one up. It says it can be installed by drilling and tapping the receiver. I plan on putting it on a 8.5" Grizzly, the receiver is already drilled and tapped, would this bolt to the holes already there? Also, can the rail be cut down if needed? I see its got a clamp on the end of it to attach to the barrel, would that still be useable if the rail was cut down? Thanks.