TLDR: go talk to an ac expert before you start thinking shiny shiny is the best…
Modern refrigerants are small sneaky little molecules which like to leak out of ac systems.. To combat this, modern refrigerant systems use hard lines and special hoses (as short as possible) that are crimped to the hard lines. Crimping is used as it’s supposedly the better way of sealing the system (but tell that to the many Holden owners who suffer leaks at hose crimp joint)...
Such methods are used to ensure best performance with the lowest leak rate (again tell that to the many owners who have leaky hose crimp junctions)…
So if you want braided hoses everywhere, you need to find stainless hard lines and hoses that are certified for modern AC gas use, else the problem becomes one of legalities and ac shops might balk at refilling your new shiny system.
Also, do note that if you reroute hoses and end up with longer pipework, this changes the amount of gas that that your modded system must be charged with (longer lines = more gas needed, but how much more ?)…
Lastly, just keep in mind that stainless and aluminium aint great bedfellows as you can get galvanic corrosion issues… So that’s something to consider as well…
Best, safest, easiest approach is to use aluminium ac line and polish them to perfection, then clear coat those lines before installation. Stick with black AC rubber/nylon hoses where required. It will still look nice and shiny, still look tidier and custom and gets away from the other problem issues..
PS: another perspective is shown in the video below, but what’s allowed in the USA may not be acceptable here so again, talk to your ac guy. But he also makes a point of only using ac hose…