I suggest you go through The Guide first. That will tell you what to look for in a guitar, and which ones are usually good around this range, and which ones are best avoided.
IDk about Walden, never heard of it (but then again I'm not entirely an acoustic guy).
Classical and jazz lover. Fingerstyle, touchstyle, and ERG enthusiast.
Buying a guitar/amp/pedal/processor, and need help? READ THE GUIDE -> http://www.indianguitartabs.com/showthread.php?p=417766#post417766
My Guitar Pro transcriptions (tabs) site for all kinds of music, all genres. - http://insecurity-transcriptions.tumblr.com/
My music recordings - http://www.gimmesound.com/insecurity/