How to trim these pickets? (Weldments)

Hi,

I am trying to trim these pickets 1/16" from the pipe. However, I want a planar end trim...so I want the closest distance between the picket and the pipe to be 1/16" with the pickets not being coped. I know this can be done with a planar/face weldment trim, but I have a lot of these fences & I don't want to add a trim plane for every section because of the curved pipe geometry! 

Can this trim be done by using an advanced feature, such as indent, or anything else? Or will I have to add a plane tangent to the curved surface for every guardrail to get that flat end?

In the end, I might just end up shortening the sketch instead of editing bodies...but any input appreciated. 

Thanks

SolidworksGeneral