The Strategic Operations manual which contains the full rules for Quick-Strike is now on sale as a PDF for the agreeable sum of 10 United States Dollars. The book also contains stuff like aerospace warfare and rules for fighting Battletech on a grander scale. Other Battletech stuff is on sale as well. If you just want to play Quick-Strike it makes sense to buy the book as PDF and print out the stuff you need as you'll only need a small fraction of the books' pagecount.
Nope, I'm not affiliated with Rpgnow, but thought some of you might want to know about the deal.