Very nice pen. The atrax is one of my favorite kits. Dont be afraid of the fountain pen. They are exactly the same to make as the rollerball. They are actually interchangeable, so you could swap out the rollerball section on this one for a fountain section and it would work fine.
That Looks Great, I really like the looks of the atrax RB the issue I have found with the ones I have done, is that the cap seems to unscrew by themselves.