saw this today. unfortunately most travel rigs are just dead weight and i had issues with bulky gear slowing me down in tokyo. keeping it simple is better for your wallet anyway.

• Rode VideoMic GO II because internal audio is honestly not as good as expected
• Sony PCK-LG2 Screen Protector for protection
• Peak Design Slide Lite Camera Strap for walking dont stress the fancy stuff tho, you'll be fine.

Since you are on a tight budget and leaving soon, focus on reliability over fancy rigs. You dont need a cage yet. Just get the basics so the camera actually functions in the field.

• Storage: High-quality cards are mandatory for the FX30. The Sony TOUGH-G series SDXC UHS-II 128GB is the safest bet for durability, but it is pricey. For a budget option, the Lexar Professional 1667x 128GB SDXC UHS-II is decent and works for most 4K bitrates, though it is less rugged than the Sony.
• Power: One battery wont last a full day in Tokyo. The Sony NP-FZ100 Rechargeable Battery is the standard for safety and accurate power readings. If you must save money, the SmallRig NP-FZ100 USB-C Rechargeable Camera Battery is a solid alternative that charges via a simple phone cable.
• Light control: You need a variable ND filter for outdoor shots. The K&F Concept 67mm Nano-X Variable ND Filter is a reliable entry-level choice. It keeps your shutter speed where it needs to be in bright sun, even if it has a tiny bit of color tint.

Wow ok that changes things. Gonna have to rethink my approach now.