Here’s my two cents on a few of your “issues”.
1. Storage should be pretty simple if you built something out of wood that is sturdy enough. Mine is in full time but if o have to haul crap which is rare I built a rolling dolly out of 4x4, 2x4 and some heavy duty caster wheels from Amazon. Took about an hour to build and I can lower it and wheel it into my garage if needed. If you’re handy enough just built it. You’ll be fine.
2. Electrical isn’t rocket science, just look up a wiring diagram and some videos on how to either solder and/or some water proof connections if you are splicing anything. I know this point doesn’t help, but my two cents
3. A buddy of mine just got a 2010 hawk which was pre wired. He cut a hole in the roof and found the wires to splice to by cutting into the driver side ceiling above the bed. Risky but he nailed it. I can get him to post if you’re interested.
4. Check out my posts for adding crap to the jack brackets. Some angle iron from depot and you could mount a rod vault parallel with the side of the camper. I also recommend a swing arm for a hitch bike rack. Kuat makes a sturdy one and REI has 20% off periodically. Best addition I’ve made for access into the camper with a bike rack.