I am including a fair use screen shot with thanks to Google Earth of the gardens as they were in 2010.
I doubt I could have pulled it off nearly as well without their fine work. The detail available was beyond words!

Since I am restricting myself to Vanilla Minecraft my pallet is limited but I think I managed to capture the spirit of the place.

Saddly I will be unable to complete the house as the National Trust blew me off when I asked for any information on the basement and 1st floor. I even sent them a file which they could have just typed the descriptions into but they were not interested in helping with my research in any way.