Here is the Lens Review Database link for the Pentax Lens. Most people here think it is a very good lens.
Super Takumar 55/1.8
Here are some links about the Spotmatic F - I have one and I love it. Made beginning in 1973, it was one of the first Pentax cameras to offer full-aperture metering. It cost $600 THEN, with the S-M-C 50mm f/1.4 lens.
Spotmatic F Asahi Optical Historical Club Screwmount Bodies
Here's a place to learn about your Tamron lens (it might be an F-System lens, but I doubt it).
Tamron Adapt-A-Matic Lenses Tamron Adapt-A-Matic 135mm F/2.8 Model JSG-28Au "Tamron's Adapt-A-Matic lenses are interesting collector's items in that they represent the industry's last generation of non-computer optimized optical designs."
You have a nice kit here to start learning about photography with. The value of these items is related to their condition and whether you can find people who are interested in old Pentax equipment - not all of us are - and whether you have something that someone who does like old stuff doesn't already have.
Here's a place to get your Spotmatic F back in as-new operating condition for not much money - and we all use this person to repair and clean our cameras - he is the best in North America.
Pentax Camera Service - Eric Hendrickson