Welcome to the forum
The K-30 is a great camera, a lot of camera to learn from and I don't think you will regret it. I already see the LBA is calling you, the only "bad" part of owning a great Dslr.
I would advice you to get a manual 50mm lens first to see if you like the focal length. I would also recommend the DA 35mm F2.4 it's just plastic fantastic.
Nowadays I seldom use my 50mm's and the DA 35mm is my walkaround lens choice since I often missed shots with my manual 50mm and I feel that 50mm is to long focal length, especially indoors.
Hope you will find this forum useful, I know I had, and still do
Cheers
Yos