Well, I finally got the case split today. It's for sure spun rod bearings. The mains and all the trans bearings are just fine, and the rods are barely damaged at all. I can't feel any of the grooves, but they look pretty bad, and the bearing for cylinder #1 is turned just a little bit in the rod and cap. I think I should be able to get away with just getting the crank polished. There is no scoring at all in it, just some light marks that are only visible, not able to be felt at all.
Here's some carnage pics!
Half of the case and the trans gears
the other half of the case
the crank journal
rod number one
rod number two
main journals
__________________
'02 Lexus IS300
'06 Suzuki SV1000: Back on the road and ripping hard as ever!