Joomla migration, done!
It took a while to get there and it was only Google webmaster tools complaining about crawl errors that I finally made the plunge to install Joomla 3 onto my London server and migrate all the content from Bournemouth. Joomla isn't or wasn't best at upgrading itself, not as easily as how Wordpress does it now. I opted for a commercial migration too called Migrate Me as opposed to J!Upgrade which I did try but got spurious results when all my page links got turned into something weird.
I will have to wait until Google reindexes everything as all the search engine friendly URLs from previous have been modified to have IDs in them. Google dropped most of my links anyway, so at least it will be better than recently.
It was a bit of a faff on having to learn a new framework and template options but seeing as it was around the Xmas holidays I had a bit of time to mess around with it.