Msi nightblade carry on

[unicorn_impaler]

My situation keeps changing and I keep having to change my build etc and basically my newest build is:
PC Case: MSI Nightblade Mini ITX Gaming Case - Included
Power Supply: MSI 350W 80+ GOLD High Performance Power Supply
Processor: Intel Core i7-4790 (3.6GHz, 8M Cache, 8x Cores, 4.0GHz Turbo)
Heatsink & CPU Fan: Corsair H100i GTX with Corsair Ultra Quiet Performance Fans
Motherboard: MSI B85I LGA 1150 Mini ITX Motherboard
Memory: 8GB DDR3 2400Mhz High Performance Gaming RAM
Graphics Card: MSI GTX 980 Ti GAMING 6GB 384bit Overclocked Card
Sound Card: Integrated 8 Channel HD Audio
Primary Hard Drive: 256GB SSD Upto 500MB/s+ Speed Solid State Drive
Secondary Hard Drive: 3TB WD 7200RPM 64MB Cache HDD
Main Optical Drive: Dual Layer DVD +/- Writer
So the situation i'm currently in means I'll have to take the computer i build from country a to country b and I'm definitely not checking it in because it'll be broken by the handlers throwing it around. I'm thinking about getting a different bag since the only carry-on i have is a backpack and the nightblade won't fit in that. What would you guys reccomend that i get? And also i've been browsing and i saw that customs would want to check my hardware, is this true?

 

[Dark Lord of Tech]

Power Supply: MSI 350W 80+ GOLD High Performance Power Supply , way to light on power and very very poor quality.

You need a high quality 650w.

 

[unicorn_impaler]

Power Supply: MSI 350W 80+ GOLD High Performance Power Supply , way to light on power and very very poor quality.

You need a high quality 650w.

Sorry i forgot to add that i was going to put in a 650-700 watt high performance power supply.