Hello!
Well, thing is that I don;t have much of a choice where I live, I either get something directly from Ricoh Pentax or nothing at all...
So today I went to the store asking whether my order was lost or something and they said: "oh yes, we received it! here you go" and gave me a focusing screen box.
When I opened it I checked the manual and it said it is for Pentax K5 and K7, but after examining the names of focusing screens there I came to a conclusion that it should be okay for K30 too, at least the model numbers were almost matching, I got ML60, it is ab it different focusing screen from a standard one and I tried to put it into my camera while I was in the store and checked it, and it worked! At first I was afraid it might be bigger than I need, but after 4th attempt to place it i successfully placed it and now when I focus I get sharp images that match the what I get with focus peaking and what the red dot indicator shows me in focus. So woot! I can see what I am shooting again!
Unfortunately during the period while I was trying to place focusing screen couple of dust managed to get on to prism or focusing screen, but I am not touching it again, compared to what I had it is now crystal clear view which makes me ha[[y enough to continue on working... on the mean time I am saving funds for a professional cleaning service. I will play with focusing screens and viewfinders no more