How's this one, similar to what I did last year, except last year it was available in Z for about the same cost.

$121 each way (avail Jan 20th).

MCI-EWR 1089
EWR-IAH 1398
IAH-LAX 1375

Plat bonus: 4827
Online booking bonus: 500
Online check in: 500
Total miles: 9689
Total EQM: 3862

Cost per mile: $0.012

You can do the redeye back and save on hotel, shower in the P Club in IAH. I think flights from CLE-MCI aren't very expensive too, if you need to start from CLE.