Im a great fan of allowing the budget
to set the engineering. Which is what happens in feral life engineering anyway. Often there are a myriad of solutions , each more precise and efficient then the previous. Cost rising according.
Hence questions like " integrated charger
inverter" " All LEDs" , busses, fusing etc, really need to be brought back to budget and what you really need. The plain fact is that electrical system
can range from very simple to advanced. What they provide the user, is not so linear.
For logging I use a small hall effect current
probe, several on flea bay and amazon etc for a few bob. I have a logging DMM, or have a version that connects to a lap top, very handy to get current
But in practice you can use a few simple rules of thumb
1. Charging capacity should be around 20-25% of battery size. less means longer times, but can be cheaper.
2. Inverters should be sized for the 80% task, don't have a 2K watt inverter
mainly running the odd 80w load.
2.5 switching to all LEDs needs to be cost justified, On my boat we boat in the summer time, days are long and very few cabin
lights get used. It never made sense to convert 40 fittings to LEDs. YMMV.
3. Integrated system are great, but if you have already got acceptable part solutions, don't trash them merely to have an integrated solution. Fancy inverter
chargers are all very well, but rarely are these advanced features needed, especially on a smaller boat. ( this is especially true of various power sharing/power support features) . Just switch off some mains devices
4. any monitoring is better then no monitoring, if you can't measure it , you can't control it
5. Look beyond marine
land and into general electronics
distribution ( mouse newark, divi etc), very few things are specifically marine
, this is especially true for cable, buss bars etc.
best of luck