We left Japan on the 21st of December, with no plan to return. That's not important. What's important is that I managed to bring the PC inside checked baggage without much trouble.
The PC easily fit inside wife's suitcase because it is fat, and the display fit inside my suitcase because it is wider. Too bad I forgot to take a photograph of them packed inside the suitcases. I used the original foam covers to protect them. It was the display that required more of the protection. The case would not break due to pressure because it is stronger and the shape is sturdy. The display is too thin and even the pressure from clothes can shatter the screen. Thankfully, my suitcase is very rigid and would not deform due to pressure from external pressure.
I had to buy another suitcase because the two suitcases didn't provide room for the clothes that wife had collected over the last 4 years. Even then, we had to use vacuum bags to make them use up less space as possible. Unfortunately we couldn't bring any chocolates or sweets from Japan. I could have shipped them using a wooden crate but they are expensive. JPY 66,000 per 2 cubic meters. I didn't have much other useful stuff to ship to Sri Lanka anyways. The mains power mismatch is responsible for it mostly though. Otherwise I could have brought down the refrigerator and the washing machine, which were in very good condition.
Anyways, back to the original topic. The PC survived the trip with no harm. As you can see in the photo on the top, they are safely back at my house. Sadly, there isn't much space for two PCs - mine and the parents'. But it is OK, because the main unit at least, won't stay here for too long. It will be going on another long voyage soon. Hopefully I will have enough baggage space. I would have to think about what I am going to do with the display. I can take it with me, or I can sell it in SL. But people don't want to pay much for second hand products, especially the ones that do not come with warranty. There is a few more weeks to think about it. Today is not the day to think about it.