Nice images, especially considering what you are working with there!
Not having a Goto mount will make it very difficult, when I was using my 700D in 5x LiveView mode (so only getting about 20 fps instead of 60 fps for you) I worked out I needed
about 2000 "good" frames to get the noise levels down low enough for the best results, so double that for "lucky imaging" meant I needed about 4 minutes on target. With the high speed crop mode you should only need about 60 - 90 seconds on target, which you might be able to get with 1 or 2 passes of the planet as it moves across the camera's FOV. Any vibration (caused by you holding the OTA) will reduce the quality, you really want to try to get it steady.
If you haven't watched these tutorial videos, I would highly recommend you do
http://planetaryimagingtutorials.com/
But having said that, an excellent start, I remember the first time I captured Saturn I nearly fell off my chair when the Cassini Division popped out of the stacked video.
Andrew