928 wheel fitment

[Col]

i've got a chance of a nice set of porsche 928 wheels.


its a set of 4, all 16x7j, and i'm lead to believe theyre et65 (will confirm)
lets say i use 20mm adapters, that'll mean they'll work out 16x7j et45 right? would that fit or would i end up hitting the tyres off the shocks / rubbing?
the wheels have a set of good 205/50 tyres but i'd probably eventually swap those out for a set of thinner ones.

i'm just asking because i don't want to shell out for new wheels and adapters and then realise for whatever reason they don't fit. thanks guys.

[Col]

just had a rethink, 30mil spacers seem more suitable, original steels are 6j, et38, so 7j et35 doesnt seem like too much of a stretch right? i ran 7.5j et25 a while back and they where too wide to be practical.

[GTXTRA]

nice choice of wheel - here's a car at Cosford a couple of years back to show they can fit ok.