I have the Currado 301E7 and L-O-V-E it. I fish it on a 10"6 Convergence (12-20LB line rating I think) and it balances the rod very well. However on the same rod in the beefier version (12-25 line rating I think) it feels a little too light for the rod. On my 11"6 Technium 12-25 line rating the rod feels way tip heavy and sucks to fish with. With these two heavier rods I'll throw on my Cardiff 401 or 7001 Abu and the combo is much nicer to fish.
The Currado G series is junk stay away from them. Guy who services my reels says lots of problems with them. I don't know much about the Chronarch. I couldn't get the specs page to load on Shimano's website
I would say if it has similar specs (10.5oz, 15lb drag, 6.2:1 gears, etc) it will likely fish well on your rod.
I'm not sure why but I've never seen anyone with the Chronarch on the river. I'm not sure if it has less line capacity or what. But I have talked to several guys with a 200 or 300 series CurradoE and all loved them. I'm sure you could get away with the 200 series, but I find the 300 series a good match for my rod.
If anyone tries to tell you the CurradoE's don't have enough line capacity, not enough drag, etc for salmon/steelehad ignore them. I landed serveral pig white springs and tons chum on it with no issues. The only minus is on a bigger/heavier rod it's just too light.
If $ is a factor, and the Chronarch is more than the Currado, I would get the Currado as it is more than sufficent.