With regards to the forward berth: my wife and tried getting in and out but it did not work for us because the cabin top was too low. To get in and out of a berth I need to be able to sit up straight first. I have a bad back ,am 75, and 6'1". I can no longer go through the contortions needed to get in and out, and my wife has similar issues.
Yes I know those issues full well--since I am 87 yo, 6'2", 180# having had 3 major back surgeries. We both are under pain management. Opening up the port bulkhead helped considerably with the gymnastics involved with V Berth sleeping.
We gave up C Dory's as cruising boats because of my heart conditions, weakness and declining balance issues. It was more an issue of loading the boat, on its trailer. If we kept the boat for local use, then we could put it at easy boarding height on our boat lift.
Most of us know the layout and the construction of the 22, but I am giving you some alternate ways of thinking, rather than altering the usefulness of the C Dory, and making the boat potentially less marketable in the future when you sell it. I also try and give you some information you might not be aware of, in the interior design and function of the C Dory 22. I don't know if an interior hull mold was used in the construction of the "Commuter" interior and if there was a mold, if it is still in usable condition. That interior had the dual bench seats on both sides. Bringing up the Starboard bench to the level of the helm seat will require some foot rest (fold up and down) so not to intrude into the Isle. Both my most recent 25 and 22 had an alternate set of cushions which made the port side into a bench seat with backrest, leaving the table in the down position, or making it an alternate dinette. There was an issue of foot rests (one had fold down sailboat mast or cabin top steps to boast one's self up, and provide some foot rest. My recollection was that the "commuter" version had the bench seats lower than the dinette version. These boats were used as utility launches to get to houses on Islands or other ares mostly accessible by water, or by a few 6 pack fishing charters. Far better was the C Dory 30 catamaran (or Black Feather Chill Cat) which one model was designed specifically for the 6 pack fishing charter business with seating for 6 passengers on bench seats. But this boat is 12' wide!
You noted that you knew Sam Devlin well. Did you discuss with him about design of a displacement boat for your electrical outboard project? He certainly designs and builds some great designs.
Is this a boat which will not involve cooking aboard? Go Marina to Marina with restaurants for meals?
In any cases, we all look forward to your build and findings as you experiment with power etc. Ask the Moderator (TyBoo or DaNag) for a photo album and put photos of your boat under construction so we all can follow.