[CA] new mfd

[Amhfire]

I'm looking for a little help, I'm trying to update some electronics. currently I have a 33 hydrasport cc. I'm running a c120 classic with a dsm300, radar,sounder,and using 1 unit for everything. I was given a chirp 470 mod, brand new. so I need to update the c120 classic as it will not be able to run chirp. my plan currently is to leave the 120 and run the radar of that unit and buy a new 12 inch unit to run chirp and nav. I'm totally lost on what unit to buy, e series, c series . any help would be great. I plan on buying a bronze 1kw ducer through hull for the chirp mod. I will at some point buy a second unit to update the c120 classic but need some time to do that. thanks