Chuck, firstly , the OP mentioned liveabord, that condition needs to be fleshed out. If shorepower is readily available then that is a factor.
The other things about power budgets, is the "Calculate the maximum daily usage for all of that equipment" , this can be difficult unless you have the actual equipment. ( duty cycles etc) You can make a stab at it.
The other way is simply to look at whats common in boats, typically thats 200-400 Ah battery banks, 50-80 amps alternators and shore chargers in the 30-50 amp range. Add solar
From my point of view, I would look at my recharge options and or shore power
availability and frequency. Since these tend to be the dearest and hence the determining factors, then Id look at what was practical. There's no point in arriving at a bank that you cant charge.