freyar
Extradimensional Explorer
Ok, I'm at home looking at Draconomicon, so let's deal with this. I'd say that a single dragonet hide can make hide armor for a Small humanoid or the hides of two can make hide armor for a single Medium humanoid. As usual, this dragonhide armor is masterwork and costs twice as much as usual masterwork armor. The armor itself is immune to acid. With an additional DC 25 Craft (armorsmithing) check, common-dragonet-hide armor grants resistance to acid 5 to the wearer as an Extraordinary ability. (See "Dragoncraft" items in the Draconomicon for more details as well as more information on the types of armor that can be created from a Medium dragon hide.)
While I'm looking at Draconomicon, Medium dragons generally have Poor maneuverability. You want to stick with that?
While I'm looking at Draconomicon, Medium dragons generally have Poor maneuverability. You want to stick with that?