Undrcoverrednek, that is a nice build. I have seen that one before but it's more complicated to put together.
I got my idea from Roland and used his 1.0 version. It's cheap and easy to put together, but it has some limitations such as cables, battery etc. For shooting from a stationary position it works pretty good, but out and about calling, and walking through brush etc. you would have to use some caution to keep from catching wires on vegetation or breaking the monitor off.
Roland's 1.0 version:
Here's a few of the coyotes I have taken with my home-made builds: