Well I got to come home for one day. Didn't get much done, but got a little done.

Here's the pics after I ground away some of the dust shields, and put the brackets on:
http://www.mitsustyle.com/forums/attachment.php?attachmentid=8908&d=1246150421
http://www.mitsustyle.com/forums/attachment.php?attachmentid=8909&d=1246150435
http://www.mitsustyle.com/forums/attachment.php?attachmentid=8907&d=1246150421

I used M12 x 1.75 x 25mm WITH a lockwasher. Here is the back of the bracket to show how this length worked, but remember there is also a lockwasher being used:
http://www.mitsustyle.com/forums/attachment.php?attachmentid=8910&d=1246150435
http://www.mitsustyle.com/forums/attachment.php?attachmentid=8911&d=1246150445

The length worked good, but I'd think 30mm length would be ideal. Lowe's didn't have 30, so I'm going to stick with the 25mm. The next length they did have was 35 which seemed to be a little too long, they stuck out the back a tad too much for my liking. the 25mm had probably 3-4 threads into the bracket which should be fine, but if again, ideally I think 30mm.

So, there ya go. In my eyes, a 30mm length (With a lockwasher used) would be the ideal length.

I tried using some 35mm length ones for the Bracket to Caliper bolts. They worked, but only went in with only a couple threads. There is a lot of room to thread in these calipers. So I'm going to try to get my hands on some 40mm or 45mm, both will probably work fine. Either of those in my eyes should work perfectly. And again, that is with the use of a lockwasher under the head of the bolt. Just with the spacers, the 35mm are just barely hanging on, too short IMO. But I left them in just for the time being, and to get a nice pic of everything mounted up
http://www.mitsustyle.com/forums/attachment.php?attachmentid=8912&d=1246150445


Some other misc pics:
http://www.mitsustyle.com/forums/attachment.php?attachmentid=8902&d=1246144436
http://www.mitsustyle.com/forums/attachment.php?attachmentid=8906&d=1246144464
http://www.mitsustyle.com/forums/attachment.php?attachmentid=8903&d=1246144452
http://www.mitsustyle.com/forums/attachment.php?attachmentid=8904&d=1246144452
http://www.mitsustyle.com/forums/attachment.php?attachmentid=8905&d=1246144464