IIRC the easiest way to tell if you have true anni rims are if they are 7.5 inches wide and the similar ones fitted to Mk4 golfs are slightly thinner at 7 inches.
Not seen your other posts, what brakes are you running?
RXII's are known for being an problem clearing calipers, I must be lucky I have the 7" mk4 type on my valver -the calipers are close to the spokes but never had a problem.
Have you considered some hub centric spacers?
Edit: just had a look at your other post, mine are 288 discs and clear. Some people have ground back their rake calipers, not ideal but its a very small amount of metal to come off.