Mechanical Drawing for Stratix V DSP Development kit?

You have interpreted the diagram correctly.

Note that the board is higher than a normal PCIe board. I just measured the Stratix IV GX Development kit, and its about 4.2 inches (107mm) tall (ruler measurement - not from a mechanical diagram).

Did you really want to use this in a desktop computer? It might make it hard to probe or attach cables.

Have you considered using an external PCIe slot? For example, OneStopSystems have PCIe expansion systems

http://www.onestopsystems.com/

I test my PCIe hardware using an HP Elitebook laptop with an ExpressCard-to-PCIe adapter controlling/connecting to a 3-slot motherboard.

http://www.onestopsystems.com/pcie_over_cable_z6.php

http://www.onestopsystems.com/pcie_atx_bp.php

Cheers,

Dave