Has anyone done an II to DVC exchange lately to know when they receive the exchange information?
If you call the "800" number on your II confirmation about a week after you receive the confirmation, DVC Member Services will have your name associated with the exchange reservation. You don't have to wait until "until a week or two before the date of travel" to do so.
DVC Member Services will need the 12-digit reservation number (which now begins with a 3) from your confirmation.
DVC Member Services can add requests. As with other timeshares, the more requests you make, the less likely they'll be able to satisfy those requests, especially if you're an exchange guest.
You can add the Disney Dining Plan, which I don't recommend. However, some people love nailing down their dining cost ahead of time and then trying to get their money's worth from the plan.
You can also reserve Disney's Magical Express service, which provides free roundtrip airport transportation and free inbound luggage transfers. It's a terrific service.