warnemunde/rostock itinerary- with a scooter

[flabuddy]

We're docking in Warnemunde and plan to spend the day there and in Rostock. (We've already spent a substantial amount of time in Berlin.) My husband will be using an electric mobility scooter that disassembles and the pieces can fit into a car trunk. He can climb some stairs and walk a short distance if necessary. We'd like to visit the Stasi museum in Rostock and have a good lunch, either in Rostock or Warnemunde. Also, my husband is a beer lover and would also love to go to a brewery or bar to sample German beers. Any suggestions for a scooter-friendly itinerary? What's the best way to get to Rostock from the port- could we take the scooter on a train? Should we catch a cab? Are there restaurants or bars within scooter distance of the Stasi museum, or will we have to get taxis to and from the museum, to and from restaurants, etc.? Or should we plan on just going to the Stasi museum in Rostock, and eating/drinking back in Warnemunde? (We know the Stasi museum is not necessarily accessible, but my husband is prepared to leave the scooter at the door and use a cane/portable seat to get thru the museum.) Thanks for any advice!