looking for a Rollerball Tip

[penmanship]

I have a Gentleman's Fountain Pen, and was wondering if anyone would have a Rollerball Tip for this kit that they would be willing to sell/trade/swap. I am more than willing to pay for the shipping. I did contact CSUSA, but they do not have any at this time.

It is the Rhodium plated version.

Any assistance is appreciated,

Thanks,
Tim