Hey sorry for late reply.
The grinds teacheres I used were Liam Bell and Elizabeth Dunne, both barristers. I find them really good and helpful.
About doing the 8 exams, it depends on each person I suppose. I am a Commerce graduate and had only done Law as one of my subjects throughout college so therefore I only wanted to attempt doing 4. It is possible and if you put your mind to it you could do it. It is very tough working full time though, especially being in college as well. Doing 8 exams may mean you will pretty much not have any life other than work and study but if you're prepared for that, definately gofor the 8.
When you did them before, how did you find them and how much study time had you given to them?
Good luck anyway,
Carmody.