The 4x10 cab looks wonderful. If you're going for a R500 head, or B500 head, go for it.
If you're wanting a Rumble 500C, you want the 2x10 instead to avoid a volume/power mismatch. If you plug the 500C into a 8ohm 410, you end up driving 2 speakers with 250w and the other 4 speakers with...