My son won a Jr. Gent Rollerball pen kit as part of a contest and I need to get bushings for it. Is there an equivalent pen kit that either AS or WoodNWhimsies has that I could order the bushings from them? I want to order some Norseman drill bits from AS and I won a gift certificate from WoodNWhimsies so already have orders planned at both places. I really don't want to order from a third supplier and have to pay a third shipping charge just to get a set of bushings.