Improving a 3'rd hand

Step 3 Re-assembly

1 - Use the crocodile clip, the link and the part that slides on the rail from B (pic 1), to create your 3'rd crocodile clip arm that attaches to A (pic 2)

2 - Slide the 3'rd crocodile clip on A. (pic 3)

3 - Attach the crocodile clip, you took of A earlier, to A (pic 4)

Now you just need to add your hot shrink tubing to the crocodile clip tips.