Ok... took the antec and put it in the danby. Here's what I did and some pics:
Blower: Antec... link to fan in previous post

Tube: 3/4 flexable nonmetalic conduit. I had some left over from my basement remodel. It's about 1" outside diameter which seemed a little big for my unmodified "tower hole" on top of my danby. I'm a little worried about return air flow... but we'll see how it goes.
Mounting: Seemingly half-assed... with zipties... but I drilled a hole in the conduit at top and looped a ziptie through a hose clamp to hold 2" from the top of the tower:
And then more zipties inside... couduit is very ridgid and stays in place well:
So the bad news is I blew my keg yesterday and wanted to do this mod between kegs... so no beer to "test" with.
But the thing has been running since I started this post and I just checked temperatures. Danby says 36... but I've done the resistor mod and inside is measuring at (with a little infrared thermometer which can only measure the sidewalls of the fridge) around 29 degrees... again with no keg in it... I'm sure the liquid temp would be higher.
I'm getting about 49 degrees when I point the thermometer inside the tower. Which is a huge drop... I was getting 68-72 degrees in the tower before I put the blower in. But that stills seems warm.
I'll have to play with the temperature setting once I get a keg in and I'll let you know how it goes.
Open to any feedback.