need help with some new rims

 OK, Ive got an 07 suburban, Im doing a 3-5 or a 4-6 to be determined once I see how the rims and tires I get look. I am lookin at some boss 330's, The highest offset they offer is a 30. Does anyone know if these will stick out beyond the fenders(which I dont want) or will they sit in a little. I would like to bag it eventually and want them to be able to tuck when I do. If you dont think this is the setup I need can anyone let me know what offset to look for and the width. Thanks for the help

they should sit in if it is a plus 30 offset

thanks for the input