Create sale Order for Direct Sale order?

Dear

Oracle Friend

I Hope all are going good so guyz our Client want to implement the Create Sale order for Direct Sale order Scenario How i can do this what are set will required. I Explain you flow

1. Create Quick Sale Order -----------------------> Enter Payment ---------------------------> Auto Deliver Item and Auto-Generate Sale order Invoice

so remember Create Quick Sale order Booked on Custom form and Payment also.

So I can do this scenario kindly any one help me  i will highly encourage you

Thank You

FahadUllah