yupitan

Need to get help from all the experts in here. I'm currently with 2010 w212 E250 and I wish to get new wheels for my ride. I'm thinking of running a square setup with 19x8.5j with 245/35 all around, but i'm not sure with the offset for the flush look that i want to achieve. Could anyone who is on the same setup give me some advice? And also do I need spacers if i were to do rotation on the tyres? I'm not very sure about this or would a staggered setup be recommended? Thanks for all the help