Cub prop swinging and grass strips
Hand swinging
Whilst not perhaps ideal, I've swung Cub (and Super Cub) props on my own. Must have sizable chocks (with string attached that leads back into cockpit so you can pull them in once on board) and perhaps a restrainer on the throttle (which stops it being opened more than a fast tick-over).
Make sure you follow the starting calls...
Grass strips
Have flown Super Cubs from Headcorn and over much of the SE. Perhaps start with established airfields to get the idea then look for friendly strips or fly-ins?
I think the main thing is to let go of the standard square circuit with use of flaps and change to glide approaches wherever possible. That way you'll come to know side slipping (in some ways though I prefer 40 degrees of flap over a side slip) and judging how to get touch down at a slow speed at the start of the runway.
One thing I did find when 'phoning around strips was that a Cub was considered an OK type (as in "Oh a Cub").