Advance Payment terms for vendor

Hi All,

As per our client Business requirement we need to create advance payment terms for vendor.

Below are the payment terms which need to be created, kindly suggest.

1.  20% Adv, Bal 80% within 120 days DA after shipment.

2.  30% Adv, 60% against shipping doc,10% after comm

Thanks & Regards,

Rahul.