Thanks for the help.

Got it to price out to $1249 TPE-NRT-IAH-CLE-GRR-IAH-NRT-TPE with the TPE-NRT segments on either JL, BR, NH, or CI. Doesn't look like anything that will give miles though. Kind of a ridiculous routing but S availability is tight.

Or it can be routed through HKG on CX for the same price...

I'll have to keep cracking at it.