Safety Certifications & Registrations - Required by law or just good to have?

[Passages]

Bought my 63' few months ago and I'm getting mixed messages from the "experts" on the dock. Is everything listed below essential and in need recertification, registration or licensing?

6 person life raft - cert expired in 2016
EPIRB - Battery expiration date was 2017 - but can't find a source for new battery. Not registered under my name
Fire extinguishers - Mostly Kidde Mariners not part of recall. Last inspection was 2016
Fireboy HFC227, 70 lb Auto/Manual in ER. Tag says cert expires 12 months from punched date (July 2016)
SSB Radio - Sea 223 - Not registered
VHF MMSI - Not registered under my name.

So what's the real deal for a recreational vessels under 65'? I don't go offshore. Coastal cruising only. Thinking I can get rid of the EPIRB, SSB and life raft as I should always be in VHF range.

Thoughts and advice appreciated.