If you elect to get a second unit from the trading post before AWing any units it might actually be better to get a second Spica for CR/SU over Saki. Something worth thinking about.
As a fellow newcomer to MWA my DC plan would be something like...
200 Spica > 200 Spica > up to 300 AW Spirits > 300 Saki OR 200 Spica > up to 300 AW Spirits > 200 Spica >300 Saki
With an AW priority order of roughly..
Spica > Katie > Iris > ect.
But hey to each his own.