Over the last year I've really delved into MBTI and did a good amount of study on the topic. I'm not going to promise that I will get your type right but I think I can offer some insight into the functions and how they work for certain types. I've had some success typing a few people already and I'd like to continue this with more people.
PM me if you want to chat on Skype since I do voice better than writing. Don't care if you have a camera or not so long as you can speak English :).