What are you looking for? I've got an excess of Baron rollerballs and El Grande fountain pen kits + some ball points like Streamline 7mm Flat Tops in Gold or Chrome. You can pm me if you want.
I have a lot of 'extras' lying around. Send me a PM with what you are looking for (single tube, dual tube, BP, RB, FP, etc.) and I will sort through my stash.