I'm gonna go for both ARBs (thanks to RedRobin for clearing this point up) and Pro-Kit springs.
I will not be able to compare, true, but my dealer fits all the parts, and the dealer is a long time certified ABT tuner, so I feel they'll do the job right.
I only hope ARBs are not a waste of money, in the sense that factory-installed ARBs may be of the same thickness!

I hope not.
Eibach ARBs are 26mm front, 23mm rear.