That is great news, DHRA attending my home track!!... I always attend the Snowmobile National race that is usually the third week in Oct and even plan to run IHRA again this year at DaGrove, so even if i don't race the truck I'll race the sled(s). Usually on these kind of "special" races they also let "fun runs" in also, so I'd expect cars to be there to. And for you guys that have not been there in awhile, the last few years they have been making some improvements, for example,drag strip was repaved last year (it did need it)
AS for the ferry, check into the dates they are running. They do not run all year long, but it would be a good option for you MI guys.