How to create Order with Order lines using CZ Model Configurations using API's

I need some pointers for implementation of below logic using API's (PL/SQL interface calls) :

1>     To create an order header with given price list & customer info ...

2>     Add to it given order line with given Model..

3>     To open a configuration session..check for Model configuration with provided model attribute details( group of valid items)..do validation for given model attributes.

4>     If configuration is valid, create that configuration..in configurator

5>     Pass back all items inside model configured for given order to be added to order lines..

6>     Submit to save order with all order lines showing all items as order lines which were part of model configured.