You bought CODE keyboard and you will replace keycaps or WASD V2 with PBT keycaps?
CODE Keyboards have UV Coater ABS keycaps. WASD V2 have option with PBT.
One of nicest keyboard on market WASD V2 87 Dark Grey Double Shoot PBT keycaps is out of stock for almost all keys. MX Clear are for my best for typing, MX Black best for gaming and MX Brown are for me best universal options for gamers and typing. If someone like click I recommend to check Green keycaps.
On PBT keycaps every noise is little louder and Brown could sound closer to Blue than on ABS. Except that's not click, you hear bump of keycaps. ABS are for me almost as rubber, I don't like that. But ABS are definitely better for backlight.
If you need kecaps for CODE I suggest Vortex Translucent Double Shoot PBT keycaps.
They are designed for keyboards with backlight. But you must be ready that not will look clean as ABS.
And I like PBT much more but for Filco Convertible 2 I would definitely try Double Shoot ABS from picture I post, they look great, and shape of keys is nice. But that's most expensive ABS keycaps set on market, up to 70$, double shot mould ABS.
Investing in expensive and nice keyboard is not losing money, that's only hardware constantly in direct contact with owner. And if keyboard is build nice, could be and several years old model she will last long long time, what could happen, only after some time customer could replace spacers or springs and there is turorials how to do that. And keycaps will stay same. In most keyboards service could repalce and them after several years. Good keyboard with good PCB proven on market as durable is best choice. I try to avoid new complicate keyboards, they use RGB light and need more power and much easier to something die than keyboards from 2010-2011 and models from 1990th and 1980th.