I decided to do the entire LLB as a second undergrad degree after finding out it's only possible to graduate 'Ordinary' if you do the two-year conversion course here in Scotland. Nothing wrong w/that, until it comes time to apply for the year-long diploma course necessary to move onto the traineeship. This course costs about £7,000 and funding - and acceptance - is generally not a major issue - if you graduate honours. So I've decided to go this route.
Don't know if it makes any difference to you financially, foxie, but I waited the 3 years to become a 'home' student. This may be an option for you as you are married to a UK national IIRC and can stay in the UK on that condition. It was WELL worth the wait for us, b/c the difference in tuition and fees is huge. I did a lot of research into it b/c I will be in my 40s when I qualify and age is, unfortunately, a factor in some sectors.
Things may be different for qualifying down south, but here you must have the diploma course AND the traineeship, each completely successfully, to qualify. The traineeship presents its own set of challenges, b/c you're generally only paid about £10,000- £12,000/pa and are seen as - well, in a nutshell - sort of as slave labour, so it's necessary to budget accordingly.