Thanks for all your replies. I do have a tripod so that will help. I've also just received D-Lite 400W strobes/light boxes so maybe they would come in handy for the interiors? (thanks for the lighting links
I've a 50mm prime too 1.8 which will help for details, but its getting wide angle I'm more concerned with. Even outdoors as this house has stables blocks, and a leisure complex - it would be great to get as much in as possible to give a clear impression of the 3 acres it sits on.
I've not done stitching before so wouldn't want to rely on that option. I still have L plates on!