I have a '74 Sovereign
that I'm converting to all electric and it sounds like your game plan is very similar to mine.
Full disclosure - I can't offer any 'real world' experience about going all-electric because I haven't officially been camping yet
but hopefully you can get something from my plan and what I've discovered so far...
If at any point I sound like I know what I'm talking about, stop me.
Firstly, my personal take on going all-electric
in Florida is that it should be fine in most cases. (I'm just south of you, in Orlando)
Florida gets soooo hot that you can only go without AC for about 4 seconds in January. Other than that you will need AC - and that means full hookups and no need to boon-dock or rely on propane.
Don't waist your time. I got a nice portable AC unit to cool my trailer while I worked on my renovation and it was a joke
. I literally only felt cool when I was sitting directly in front of it - seriously.
In Florida, I really think the best answer is to install a proper AC roof unit. I think the only issue you might have with a '68 is that you won't have any way to drain the condensation unless you install a drain tube. Otherwise it will just drip down the side. Not a deal beaker and I'm sure you won't care if it means you stay cool.
Note: There are some people in the forums that have had some success installing AC solutions into the spaces of 60's and 50's trailers - so you can look into that but I think the easiest is the plop one on the roof and call it a day. my 2˘.
Some things to consider:
1. Electric Water Heater - Ariston/Bosch Tankless (link
) Lowes Link
It has the same capacity as the old propane heater and it installed in same spot. I just had to run a 110 outlet for power.
2. 30 amp vs 50 amp?
The easiest way to convert to 'all electric' is the keep everything 110v with 30 amp service. That said, I would definitely consider converting your AS to a 50amp service as you will be adding some major power loads to heat your water and cook your food.
At the risk of running this thread off the rails in the first post, let me say that there is plenty of info on how to do this elsewhere in the forums but it's worth mentioning here: Converting to 50amp in Florida is worth considering 'because' the AC alone will consume such a large part of your available 30 amps that you will need to start turning the AC off in order to run a microwave, heat water and cook.
This is the main disadvantage of going all electric. Converting to 50 amp, most if not all RV sites will have 50 amp service and for the ones that don't, you just need to bring a 50-30 amp converter plug and don't run the microwave with the AC on.
Personally, I converted my system to a 50 amp service and upgraded my Converter.
Hope this helps!