Add-on Request for special Item Type

Hi

I am looking for anyopne who could create an add-on for me

I require the following functionality

1. An item that is made up of several other items,"Components" (like an assembly)

1. Item price is based on sum price of all components (like a kit)

2. Adding components to the item should function like an assembly with the exception of the additional flag feature "Receipt" - detailed in point 6 and
5. Components may be substituted at the POS but maintain the original quantity, but be editable.

6. Components cannot be deleted from the Item at the POS.

1. When creating an item, components can be flagged as "Receipt", which indicates that they must appear on the receipt.

2. Component inventory must be depleted by the prdefined quantity set in the component list of the item (like an assembly)

1. Item quantity, description and price should be shown on receipt

2. Component should only appear on receipt if the "Receipt" flag is set to true.

1. Component quantity and price should not appear on receipt

2. An example of an item on a receipt should be 2 x Item $xx.xx Component Component

1. When an item is returned it's components are not restocked, but the financial trancastion refunded and recorded as usual.

Please let me know if anyone can help

Many thanks