A general reply:

Thanks to all of you for trying to help an old guy (who recently gave up riding dinosaurs!). As soon as I get the sheet set up, there's one more step I need to overcome, but I'll try to handle it first. I'll post back up as to let anyone who is interested keep up with my progress. This is a "low priority" item that I'm working up just to help out the other engineers. I work for a company that designs custom API storage tanks and ASME pressure vessels. Hopefully, this worksheet can be used to calculate addition vessel/tank weight from their nozzles. It will also be a means to help our estimators with fabrication and shipping cost estimates. I really appreciate the help that is being offered from you guys, and I really, really need it!