Hi DD,
Don't wish to steal your thunder, but I have been using that exact set-up since the early eighties when I changed up to the new K-mount Pentax ME Super.
When I tried to off-load all my old stuff, I found it was worth practically nothing.
Being a died-in-the-wool tight-fisted Scotsman, I set up as described, and did the same with the 400mm lens, too.
I also carry a 2x adapter for the long range stuff.
You cant beat these old lenses for clarity.
AE