1. After going through the stripper, the parts will be dull. You will need to polish them before re-anodizing.
2. Determining surface areas can be difficult and/or somewhat confusing. If I made a MS Excel worksheet to calculate surface areas, would this help? If it'll help, I'll spend a little time and make one up.
3. Although a vibratory tumbler has to be the easiest way to polish aluminum, they're expensive for the average hobbyist. I've done lots of aluminum polishing, and I'm gonna tell you a secret that is well-kept.
Mother's Mag & Aluminum Polish. I've tried it for anodizing, and it can give you a highly reflective finish that rivals a buffing wheel. Here's a pic.
hope this helps!
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