I'll let someone else help you with your pump question.
Regarding the solar cover, no doubt about it, a big piece of vinyl is a big pain to deal with but so worth it as it will make a real difference in keeping your pool warm. I currently use a Solar Roller Cover Stick on mine. My pool is a lot bigger than yours (27ft AG) but it makes it so that I can easily do the cover by myself. www.solarroller.com.
Before I used it, I had cut my cover into fourths (like a pie) and rolled each quarter onto a piece of pvc. If you want to take a look, it is in this thread: http://pool9.net/wm-scover/
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