It cost me about $8 to build a stealth hawk. Extremely simple and really the only tools you need is a drill to straighten the copper and screw in the screws. Give it a shot.
In my previous post, I mis-stated the wire size. Being in to much of a hurry, I said #2 solid copper wire, when I should of said #12. Sorry, for the incorrect post and I will report to the wall for my lashings.
I will add to FaT Air's comments about the Stealth Hawk. I just built one out of Number 2 solid copper wire, that is 6" x 8" x 15" and was really surprised by how well it worked. I even did a little mobile testing and on top of a hill, I was able to get a NBC station its subchannel CW from a bit over a hundred miles. The cost is minimal and if you don't like it, you are not out much. Conversely, if you do like the results, you got by pretty cheaply.
Ok, re reading this now I realized I mised the " and thought it was '. 6 X 8 X 15 in feet is one giant antenna. Your size is consistent with mine, I just use centimeters.