**broken link removed**
They have many mechanical parts.
I am thinking about your two probe problem. I think this is hard.
I would build a "two finger hand". Two fingers = two probes.
Using parts form robot shops on line.
Program the hand:
1) set the distance between probe1 and probe2, The fingers move to 0.5 apart.
2)rotate the hand, set rotation to 90 degrees.
3)Move the hand to over the part.
4)move hand down.
From sparkfun.com Here is a two finger hand. Think of a probe on each finger.