I am looking to upgrade my standard 15 in wheels and suspension.

I am looking at the Eiback pro kit for a slight drop (I don't want it super low just a nicer stance/look). I do alot of miles so looking to upgrade to 17's instead of 18's so I have more profile and smoother ride on motorway and better tyre prices. I am worried that 17's with the 25-35mm eiback drop that it wont fill the arches as much as I would like.
Has anyone done the same mod or have pic's of how it sits on 17's with the springs before I go buy them, then regret it.
Its a TDI 130 but questions is more MK4 specific rather than TDI hence the post in this section. I have had a quick search but nothing came up.
Thanks