Chronicle is very under rated, and is very cheap compared to other armors in the price range.
Having used Supremacy, Shadow and PoE over the years, I wouldn't change my Chronicle set for any of them.
I can quite easily solo all the big mobs on Ark, Kams, Yuka, Teladon, & Scoria.
At around 36 to 38k I would say for that kind of tier.
Rx is a good armor with good impact, and have seen it priced between 20 to 28k, depending on tiers.
Hope this helps.
Regards,
DannyO