Avoid touching that large orange'ish wire with the sucker cup--big no-no! Avoid putting any pressure whatsoever onto the yoke area (the part that juts out of the tube with a circuit board attached) and just don't touch the bare circuit board (although not plugged in its probably safe but those caps can hold residual charges).
If you handle it gently you should have no troubles, and if you do unplug something for whatever reason take some really good digital photos first for reference, you can always delete them later when you're done.