auto series1 wont help as it has wider rear track. i have 18x8 with a 34+, they sit in abit, standard kind of offset. the front is about 10mm of perfect flush and the rear is about 20-25mm but its hard to judge with 2'45 degrees of camber in the rear.
i rekon your second option is good but you need a lower offset in the rear personally, fella i got my coilovers off has a 15mm bolt on spacer on the rear of his 260RS for 17x9s.
or buy you first option and throw a 10mm hubcentric spacer at the rear