I picked up a golden brown oversize Parker Vacumatic recently at The Hwy. 127 Yard Sale. It has the speedline filler and it has the two tone arrow nib, bottom jewel on the blind cap and a wide band with a small box for a monogram on the cap. The date on the barrel is "0.". However, it is missing the cap screw, arrow clip, and cap jewel. How hard will finding the parts be and what price should I expect to pay when I do find them? Thus far my searches on the net have yielded zero results for the clip and jewel. Any suggestions on sources? Also, is the pen technically an Oversize or a Maxima? Looking forward to seeing it back in writing condition. Thank you, Rob