Hello
By default in component, if you will receive payment with help Paypal - you may ask only 100% payment.
If you want client to pay 30% in advance.
We may propose to you order this as "customization service".
Please write to OrdaSoft contact form (
ordasoft.com/contact-us-form) with full details description.
How all must look and work and we will give to you quota.
Best Regards,
Andrew
OrdaSoft team