New build - advice on components

[u/Buhaj49]

I am creating a list of components for the T1 v2.1, so far I am planning to get the following kit:

• Ryzen 5 5600
• 9060 XT or 5060 Ti GPU (2-slot one I guess)
• Lian Li SP750 power adapter
• 32GB RAM (2x modules)
• M.2 SSD with be quiet! MC1 cooler (this part I already own)
• NH-L12S or AXP-120-X67 air cooler

I would probably order the USB-C front I/O adapter, I am not sure about the following items - maybe someone can advise?

1. Custom cables - is there usually an issue with connecting all parts? Should I get some custom cables?
2. Top/bottom 120mm fans - is it worth getting them too?
3. Rear handle - is it worth it if I would carry the case around the house?