I thought of trying that, Don... They were close to fitting - but just not close enough... Now that I see you were able to grind enough clearance, I may have to give it a try... Thanks for the heads up! 
They will go on Scott. And do so without negatively impacting the look from front while still leaving adequate clearance between the cylinder and tubes.
I remember vividly the evening I stumbled in to the same thing. Had one of those "What the phuk?" moments of lack of clarity. A second look makes it obvious what the deal is though. Both parts are fatter...
It's just one of those "no one's fault" things you fight through when parts from several sources are all brought together. No one can match against everything. So if we want to use them we make them work. If memory serves me correctly I spent an extra hour that night and seven or eight trips back and forth to the bench grinder getting them where I wanted them.
Didn't want to take off too much of course. So was grinding and looking and grinding and looking. When the base cleared still had to walk the flat spot up a little higher to get good clearance from top to bottom. Ended up working from about the mid point of the tube's length to just short of the base. No sealing surfaces are even close to impacted and there is still plenty of meat left in the tube. Once the first one was just right the second one took another ten minutes.