Have you looked at the Eflite Apprentice? It is available as a PNP where you provide, receiver,battery and radio. (for the record: Plug-N-Play) The plane gets a lot of comments on its ruggedness and repairability. Take a look at this linkhttp://secure.hobbyzone.com/catalog/...p/EFL2900.html

I also have a less then smooth field. I roll it with my lawnroller behind my lawn tractor as well as putting weed-be-gone on the weeds. This gives a little smoother landing area. You could also go to larger diameter wheels that would roll easier on the grass.

Good luck and happy flying.

Roger