You later mention “basic soldering skills”. Could you please define what that means?
The point is, people come here and are told that anyone can do it and it’s not that difficult, and to give it a go - so they do. You can’t imagine the crap I see on a regular basis that passes for “basic soldering skills”.
To the OP - parts express has the widest assortment of parts. However, the kits that Bob sells are a very good value and you don’t have to hunt for the exact values - he has them all. When you move to doing your three-ways - maybe consider a capacitor like the AudioCap PPT Theta. Since the values you need are small, they really aren’t that expensive. Most people spend more on their interconnects.