Restore Time Machine onto smaller SSD drive
I've ended up answering my own question as follows:


I wasn't able to delete files from the Time Machine backup and got the following message: The operation can't be completed because backup items can't be modified
I rebooted using Command+R and then tried to restore from Time Machine. I kept getting errors saying the new drive was too small. I then installed OSX onto the new drive and then did the restore which worked ok.