http://www.uoforums.com/showpost.php...23&postcount=5
This is a list of medable armor. If your armor is not n this list, and does not have the "Mage armor" property, it is not medable. I think this is your problem.
Also, since you are focusing on lvl 8 spells, you should strive to work some LMC into your suit. Good artifacts to throw in would be the boomstick, Vesper museum chaos shield (for FC1/2), rune beetle carapace, and pendant of the magi. Stitchers mittens are nice too