My only goal this evening was to work Handel into Mango. In theory, one just has to create a custom schema (Mango uses a different id structure and has more cart/item fields), point the DBIC storage layer to it, and you're off to the races.
In reality, well, it works as planned. I don't get to say that too often, but it's kinda cool. Now it's just a matter of deciding whether to use the Handel Catalyst model, or the Mango Catalyst model.