Subscription shipping/fulfillment question

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Hello everyone,

I am trying to achieve some specific order processing for subscription and need your help on how this can be resolved (any suggestion welcome).

This is what should be achieved:

1. Customer signup for subscription, pays $1 and receive first sample order
2. 18 days after initial signup, customer is charged $49 and receives next shipment
3. 30 days after initial signup, customer is charged $49 and receives next shipment
4. Then, every month, customer charged $49 and receives shipments.

Hope someone can shine lights on this.

Have installed ReCharge, however their Workflows add-on (which should be able to handle the above setup) is not available yet for new merchants.