Do you think I would get away with easy plants and no co2 with those?
Depends on Scape OFC and pretty deep tank also. But if you keep clear of doing a carpet, say do rocks with sand like beaches with transitional gravel of different size rocks/gravel to sandy areas and make it look natural. Yes should look good. Plus if you build up the back of the Scape so less water for the light to penitrate or attach plants to wood or rocks you might even get some medium plants to work.