That's a nice combination, but the planar antenna wouldn't be my choice. They're expensive and aren't as efficient for directional use. You would get better range with a parabolic or simple Yagi (like a PVC cantenna). Less chance of someone targeting it, too. Check ebay. Something like:
<a href="http://cgi.ebay.com/24-dbi-grid-antenna-2-4Ghz-Wi-Fi-wifi-Used_W0QQitemZ5881734354QQcategoryZ86719QQrdZ1QQcmdZViewItem">this</a>
or
<a href="http://cgi.ebay.com/Super-Cantenna-wifi-Antenna_W0QQitemZ5879717144QQcategoryZ61816QQrdZ1QQcmdZViewItem">this</a>
This one's almost perfect. Includes 2' cable with RPSMA connector and RPTNC adapter and tripod.
<a href="http://cgi.ebay.com/Original-Super-Cantenna-WiFi-Booster-Antenna-12dbi-NR_W0QQitemZ5880160752QQcategoryZ61816QQrdZ1QQcmdZViewItem">
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</a>