Hey PT.....Some really wonderful stuff here and that 6 foot thing is unbelievable, but if you want to make a small one for your window, they are really not very hard at all. A basic one can be a rectangular box with pin blocks of a solid wood like rock maple on either end and a small wind deflector (enhancer) on the top. You can have any number of strings and tuned anyway you like (some nice "Eastern" sounds?).Sounds like a project....You got a shop or howzabout Rick and make two? I built probably 30 or so when building dulcimers as they are a great use for scrap material (everyone was a bit different) and they all sold right away (Door Chimes were another good use and sold well).
Have Fun!
Spaw