Multiple units (bases) of the same type

Not sure what the plans are, but an idea I have heard several times is to use several currencies (for different cultures) in TMW. Now I wonder if they could be expressed in this XML scheme.

Would something like this work, depending on whether type and base need to have unique values?

<units>
    <!-- Currency A -->
    <unit type="currency" base="GP" />

    <!-- Currency B -->
    <unit type="currency" base="Tonorian GP" />
    <unit type="currency" base="GP" variant="Tonorian" />
    <unit type="currency-2" base="GP" variant="Tonorian" />
    <unit type="currency-2" base="Tonorian GP" />
</units>

✎ Kess^☽ 16:44, 12 February 2009 (UTC)