Upper control arm would be an issue if the offset is too high, and you might have issues turning with a 10 on the front. In saying that I am thinking 19x9.5 +12 all round for my next set.
I have a fibresports diffuser for sale if you are interested dags, painted gloss black.
And wombat, you have to take a screw out if either side and then it has clips all the way across, bit of a pain but can be done.