Welcome to the forums
Can you create great photos with this rather low and ancient kit? Does anyone else here do this? A big, fat "YES!" to both... The 6MP Pentax cameras have something of a cult following; small, but dedicated. "Yours truly" is one of the afflicted
Check out the following forum thread (it only started in 2017 as something of a nostalgic effort, and continues to this day):
The Six-Megapixel Club - PentaxForums.com
As for suggestions on body and lens... Personally, I use the Samsung GX-1L, which is a re-branded Pentax *ist DL2. Great little camera in either branding. Others here will come up with additional recommendations, I'm sure. As for a lens... the kit 18-55 is fine, and quite versatile. It's a decent starting point, for sure, but due to the variable aperture and limited high ISO performance of these older cameras, you'll find yourself shooting mostly in decent light...