York ~2 day itinerary check?

Hi all,

I've revised my trip plans and am now planning to spend a bunch of time in North Yorkshire. Anyway, I was wondering how realistic this looks. I don't know how long some of the smaller places will take.

Day "1": travel from London to York (I figure this will take at least the whole morning, with getting to the train station first), Yorkshire Museum, walk city walls

Day "2": York Minster, Shambles, Yorvik Museum, Clifford's Tower [possibly also dungeon and/or army museum but lower priority]

Day "3": Train museum (I gather this could take 3-4 hours, then take train to Pickering, Pickering Castle.

(Day 4 starts with taking the steam train to Whitby and spending time there, but that's for another thread.)