Lots of great tips here.
One more to add.
You have Huck brakes. They are a pain to adjust if the conture of the shoes do not match the conture of the drums. They never seem to. This gives you a false "slight drag" feel. This makes bleeding the brakes nearly impossible.
This phenomenon is easy to overcome by adjusting the brakes tighter than specs until you finish the bleeding job. I tighten them up until I can barely turn the wheel by hand. Make sure you adjust both adjuster wheels on each cylinder.
After you are done bleeding your brakes, back off the stars until you have more than a slight drag, and then plan on readjusting after 100 or so miles, as the shoes become naturally worn to fit the conture of the drums. After that you should have really good brakes.
Carl