So after selling a few more sites off at Digital Point I had more than enough in my PayPal account to cover the cost of a years hosting. So I ordered my hosting online, and within minutes it was set up and working. Changed my nameservers on this domain, did a dnsflush, magic the site was resolving to the new wordpress installation done through the TSOHost control panel! From the first going to TSOhosts website, changing the nameservers, installing wordpress and import my old posts and theme, the whole process took no more than 10 minutes, at least 5 of which was waiting for 123 reg to update the nameservers.
So now I have lightning fast, UK based hosting with the best support I have ever had for my main site, I just need to transfer the rest of them over.