I have a 22 Mojo that I got with no upgraded audio(4 wetsounds recon 6 running off the Fusion deck)

Instant regret on not upgrading when I bought it.

I'm looking to add 2 more Recon 6 in the bow, and maybe a Recon 10 sub as well. I basically know nothing about audio, so trying to figure out what WS amp would be best to power this? Could I run the 6 speakers + sub off one amp? Would you leave maybe the pair of bow speakers running off the deck?

Any advice would be appreciated.

Thanks.