What offset is best for gti

So finally took the plunge and got a gti, very nice and very standard.
Looking at some wheels as i am not to keen on the standard alloys.
Been offered a set of TSW Imolas 16/7/et35
Will they fit? they also have 205/16/50 toyo proxies.
I think they will be ok but just thought i would check.
Thanks
Andy

N15 needs around et 15-20 ideally with a 7" wide rim.

Stock wheels look much better if spaced out a bit to fill the arches.

as above with 45-50mm of lowering is ideal

Thanks for reply's, having come from a starlet sr with 45 profile tires and a 30mm drop the mera feels much less responsive so i think a lower profile and bigger wheel is needed with a set of lowering springs if not some fast road shocks at a later date.
Can get these wheels for a decent price so think i will go for it.
Andy