Hello, I'm interested in learning how to make a fountain pen section that will accept a JoWo nib/feed assembly. I'd like to start by using easily available and inexpensive pen bodies, like the Jinhao x750. However, I am not married to this pen - I just know it is cheap and easily sourced. My understanding is that the #6 JoWo assembly needs m7 .4 x .5 taps. And that's about all I know, haha. Is there is a way to build a section that will work with a Jinhao x750 and accept the JoWo assembly? I'd be interested to learn about 3d printing or basic pen turning if there are low cost options. Please let me know your thoughts. Thanks.