@geoff. yes i will definitely check and try them before buying the new cap kit.
Regarding potential updates i would rather keep them as original as possible, because they are my first Klipsch and i want to hear them as PWK intended them to sound.
The previous owner is selling the NAD gear separately for 600€. I'm a huge vintage fan, so unfortunately they look to modern for me.. I will pair them with my Marantz 2265b, 2230, 2270 and my HK 930 and find out my favorite match first. Afterwards my next big step will be some vintage tube gear, something like a Mcintosh MC225 or Fisher 500.
@tigerwoodKhorns Thank you for the link, those Cornwall badges are really nice, i might buy them in the future, but first i will look out for some used original ones.
I also read about the PIO caps, but they aren't available in the same capacity as the original ones, i guess.. i might try them out tho. i'm writing with @KT88 at the moment and he's giving really helpful insights on the topic, so at the moment it's pretty tough for me to decide, but i will keep you guys updated on the process, once my CWs have arrived 👍🏼