Proud_Newfoundlander,
I just graduated from BMQ July 4th so I'll try and answer a few of your questions
1. As far as I know there is not a weight limit for the army, as long as your healthy and can pass the physical and CF Express test you should be fine.
2. If you are accepted they give you a list of things to bring and what is prohibited. A lot of people bring electronics (i.e laptops, cell phones etc.) but don't expect to have access to them for the first five weeks at least.
3. While I was there, March 28-July 4, there were almost two new platoons starting every week with the exception of a period of time when they didn't start any new recruit platoons to accomodate the officer cadets who were getting out of school for the summer and taking their BOTP course.
4. No one can say how long it will take to go through the process. Some people it takes a year or more, mine was about three and half weeks. Depends on what trade you want and if it's available and any mitigating circumstances of your file i.e medical, background etc.
5/6. Your selection interview is a job interview. You should treat it as such and take it seriously. You're trying to convince the CF that you're a desireable candidate so you should dress for the occassion and be prepared. Your recruiter will give you some tips to prepare for the inerview. As for your hair, I would say just be neat and presentable You don't need a buzz cut but don't look like you jut rolled out of bed. I've saw a guy show up to BMQ with a pink mohawk so don't worry about it too much.
7. I wouldn't say there is humiliation but there's yelling and lots of push-ups, dead cockroaches, squats etc. They need to turn you into an effective team members and they do this by making all of you work together and when neccessary suffer together. Basically if you screw up or your buddy does, you're all getting jacked up. There is individual punishment for those who just don't get it but you'll always be doing someone elses push-ups. Don't sweat it because sooner or later the platoon will be doing yours.
8. For the first five weeks you are confined to barracks but after that you get your weekends off but they can be taken away. My course never lost a weekend as a platoon but there were individuals who spent a weekend or two in the mega for something they did during the week. That being said every staff is differant so your platoon could lose a weekend or more. All depends on your performance.
Hope that answers some of your questions