I got 29/40 on my portfolios. I estimated that I'm getting about 75/90 on paper 1 and 68/90 on paper 2. These are worst case scenarios tough.
I absolutely need a level 6. I read somewhere that the minimum overall mark for a 6 is 66/100 but I have a hard time in believing that.
It's been a while since you posted and nobody's replied yet...maybe you should check out MarkedbyTeachers.com, TSR's sister site. It has the largest library of essays in the UK.
They've got over 181,000+ coursework, essays, homeworks etc.. all written by GCSE, A Level, University and IB students across all topics. You get access either by publishing some of your own work, or paying £4.99 for a month's access. Both ways give you unlimited access to all of the essays.
All their documents are submitted to Turnitin anti-plagiarism software, so it can't be misused, and the site's used by hundreds of thousands of UK teachers and students.