Looking for Linear Sensor

RFQ Details

I am looking for linear sensor on product.
The draw wire technologies is interesting for the application.
Stroke: 28 to 30 inches.
Quantity: 1500 unity/year
Minimum life 2 000 000 cycles.
Low cost sensor is important for us. Currently we are using LVDT technologies.
Do you have sensor which can meet the requirement?
What is the cost for 1000, 5000 and 15000 units/year?
Please send the details as early as possible.
Thanks,