I've driven in France and visited Paris several times; I largely agree with Zavandor. I haven't been to DLP, but we're going in September with a day or two added in Paris, before we travel elsewhere in Europe. Everyone is a bit different in terms of travel, but with that caveat, I would suggest the following:
Fly into CDG and rent a car at the airport and drive to Normandy. If you can, stay there at least two days. The beaches, memorials, cemeteries and museums are well worth it. Standing on Omaha beach was worth the trip, by itself. We drove to Normandy and Brittany (stayed on Mont St. Michel and in Dinan overnight), and beyond, and did not find it difficult to drive around --- once we got out of the metro Paris area and traffic. I think it is nice to learn some of the language basics, but truthfully you don't absolutely need it. Pretty much everyone we met under 60 spoke English, if they wanted to.
After Normandy, return your rental car back to CDG and take the train into central Paris. Do not drive in central Paris. There is no need for that stress and cost. Plus, parking is impossible to find at any reasonable price. Since you are staying more than a night or two, I would stay in an AirBnB, apartment rental, or something similar for your stay in Paris. We've done both hotels and apartments and prefer an apartment style stay for a longer visit. They are cheaper, safe, generally more room, and somehow seem to put you into a neighborhood in a different and more immersive way than a hotel does. There's absolutely no reason for the cost and travel aggravation of staying at DLP for the entire time and I think you should be in Paris at night. Most hosts for AirBnB will also provide lots of friendly advice and answer your questions. We found a 5 night apartment rental very near the Eiffel Tower that was a fraction of the cost of a hotel. Personally, I don't think you'd want to stay in central Paris more than about 5-6 nights, including a day trip to Versailles, but your tastes, budget and the limit on your total trip time will determine that. I think that's enough time to see the major, and some minor, sights. Plus, I just tend to get tired of
any big city, U.S. or foreign, after about that many days. Use the Metro and your feet for Paris sights. You can easily take the train from central Paris to Versailles for a day trip (we did); the Versailles station is a short walk from the palace.
Once you've done the sights you want in central Paris, or have run out of days, take the train ("RER") to
Disneyland Paris. Since you are Disney fans, I think it would be good to end your trip with DLP. Among other things, I think it will probably feel a little less "foreign" to you than the rest of your trip and will help you at the end of your trip deal with the general background stress and homesickness that most people eventually feel during their first foreign trip. I'd stay at an on-site Disney hotel (chosen based on your budget or taste for their themes) for the number of days you think you are going to be in the theme parks. The on-site hotels are all within a 15 minute walk, at most, from the theme parks. If you want to save some money, you can stay at the partner hotels, but then you have to take a short train ride to the parks. I think that 2-3 days is probably sufficient to see everything in the parks, especially if you plan your stay for mid-week instead of a weekend. After your visit to DLP, take the train back to Paris and use public transport to get to CDG for your flight home. Try to find a flight that leaves after noon to give you time for the travel into Paris and to the airport, etc. If that's not possible, you might want to leave DLP the night before and stay in a hotel in central Paris, or even near the airport, for an early morning flight home.
Hope this helps.