My potential MSc supervisor doesn't visit his research lab ever, should I be concerned? My potential MSc supervisor is a surgeon, and he doesn't really focus on his research lab that much. I had an interview with him and his lab members and I was told by them that he doesn't really visit the lab like, ever. 
I have very minimal research experience, and his post doc told me that I can ask him questions if I had any, and that I needed to prepare my research proposal by myself. I have an idea about the lab's general research projects, but I feel that I am clueless as to what exactly I'm supposed to propose! 
I can't really reject this offer (I had a hard time securing a supervisor and it took me a year to find one), but I also don't want to be taught and helped by a post-doc who is frankly more concerned with his research than my education. I don't feel very comfortable about me starting a project and directing my future questions to my lab partners (I also hate asking my peers for questions and I much rather ask my teachers instead).

What should I do? I need this opportunity so bad, but the lab environment isnt very encouraging and my supervisor is a surgeon who relies on his post-doc students for all the work. How am I supposed to learn about research techniques and method?
Do members of his lab have regular meetings with him, either one-on-one or as a group? Sometimes it's better to have time set aside specifically for your questions, rather than someone breathing down your neck in the lab as you try to formulate your proposal. In my experience PIs are super busy and neglectful in general. Also it's ok to ask anyone that can help you how to get where you need to go. They were probably in the same boat before you got there.