Discount tire called the manufacturer and got some info on the TSW Max wheels; wheel bolt seat to mounting surface thickness is 10mm.

The following are what I measured today on my srt6;
The stock SRT6 wheels are 22mm thick of the same dimension (wheel bolt seat to mounting surface). The stock wheel bolts (40mm shank length) extend past the mounting surface of the stock srt6 wheel into the rotor 18mm.

So if the above is correct then I need;

-10 each 33mm shank length for fronts (wheel 10mm+through 5mm spacer+thread into rotor 18mm)

-10 each 30mm shank length for rears (wheel 10mm+thread into spacer 20mm)