I have a Roo with the Robart retracts and Robostruts made for the Kangaroo.

It definitely sits "nose high". From the bottom of the fuse to the ground measures 7.875" (with a 2.625" Glennis nose wheel).

The Robart mains sit 6.5" from the fuse to the ground (with a 3" Glennis main wheels and brakes).

Here is a pic during construction that shows the geometry described above.

Hope that helps!