Buy two get the cheaper for fixed price?

[sandomatyas]

One of my frieds has a bit hard topic to solve.
He wants to sell products from a specific manufacturer and support this sale with a special discount. If you buy any two product from this specific manufacturer the cheaper one is for a fixed price.
Example1:
1 piece of Product1 for $30
1 piece of Product2 for $20
Product2 is the cheaper, the fixed price is $10 so you pay 30+10=$40.

Example2:
6 peaces of Product1 for $30
You get every second product for $10, so it is 30+10+30+10+30+10=$120

This is a temporary project so I can change the core code and I have soime PHP skills, too.

So if you have any ideas, please don't hesitate to write me

[Jörgen]

Hello

This looks like something Awocoupon would be able to do. Ask Seyi if it is possible.
http://awodev.com/products/joomla/awocoupon?referral=virtuemart-forum-image

Regards

Jörgen @ Kreativ Fotografi