Both versions of the kit use all discrete components.

The difference is that the kit GP linked has surface-mount components, while the one you linked has through-hole components.

I built the through-hole version a few years ago, and it was great fun to try some classic 555 circuits.

If anyone is unsure of their soldering skills, the through-hole kit would likely be the easier one to start with.

Evil Mad Scientist makes some awesome stuff.

Oops, yeah, you’re absolutely right.