Okay, barding for a large mount (a horse) costs 4x what a regular suit of armor costs, and weighs 2x as much. That is for the base armor (chain, scale, plate, etc.). Do magical enhancements get multiplied by this cost? What about specific magical armors, such as celestial armor? Does celestial barding cost 22,850 gp (base armor x4, plus magic) or 89,600 gp (total armor cost x4)?
Can you even make barding a specific magical armor? And if so does the mount or the rider control the special properties (fly in the case of celestial barding)?
Some insight would be nice.
Master Arminas
No rules on it, but, in general, you should be able to make barding versions of armor. Celestial armor, however, is one of the problematic ones. There's no way to tell what is physical armor, and what is magical on it.
Most other armors don't have costly material components in them (IE: Gold/Silver mesh). Making a barding version of Elven Chain, for example, is relatively easy, since it has no magic component. It's 4x the listed price. Making a barding version of Mithral Full Plate of Speed is also fairly easy, 4x the cost of Mithral Full Plate, then tack on the magic.
So the answer is, maybe, depends on the GM, and what they set as the 'base cost' of the Celestial Armor.
magic enhancements cost the same for a small size creature as it does for a large, so I dont see any reason barding would cost any differnt