Hollywood, the 17's in the slabs only seem to come in 3.5in backspace, wrapping them in the 35's will have the outer edge of the tyre 4.6in / 118mm further than the stockers. Stock flares? not a chance!!
The other thing to consider is the additional loads this will put on other components, especially front bearings/hubs, ball joints, steering components and diffs over all.
This site -
http://www.rimsntires.com/specspro.jsp - is excellent for doing this sort of comparison too.