Enchant item, step one, light the 5 candles....
To Use the Enchant Item Ritual you would not have to take a multiclass feat, you could take 2 feats: "skill focus:Arcane" and "Ritual Caster" (or whatever it's called.
What really stuns me about the item crafting is not that anyone can do it, it's that you can create ANY item of your level or lower in 1 hour once you have the funds to pay the cost of the item.
ANY item except for potions, and they, for some reason, are a 5th level ritual.
I find that weird, and slightly disturbing.
Of course as DM it's easy to say "the Enchant Item ritual has been lost for centuries. There is an Enchant armor Rite, as well as a Craft Magic weapon rite, and a enchant ring ritual, the Holy Ritual of Cloak Weaving,
the Tinker Ritual of teflon coating pots& pan, etc. The Septarchs of the Quantum are trying to solve great Unified Enchantment Ritual, but thus far have not solved it - though they will pay well for the party of adventurers who gains access to the lost library of Sitnalta, wherein the great ritual was one stored..."