Item Sales on Contract

Hi,

Scenario One:

I plan to sell one item free of cost and recover the cost by selling few supplementary items on contract basis to the customer may be for one year.  Customer needs to pay FOC Item price if contract is terminated in between. 

Scenario Two:

I plan to rent one item free of cost for one month and recover the cost through selling supplementary products to the customer on contract basis.

Scenario Three:

I plan to get security and sell fixed items to the customer each month for two years on contract basis.

I would like to achieve these sales on contract in Dynamics NAV. I guess I can achieve scenario 3 using blanket sales order. Would jobs module can help me on first two scenarios ?

What is the best way I could achieve all this ?