My best piece of advice ... sign under someone that you feel comfortable with.
I'm with my 3rd CMC. The first 2 were very "you should sign on types", IMO. They really pushed hard for me to sign on with their selling point being that I could get my product at cost. I know the 2nd gal is deactivated, had tons of product that she had to sell at nearly cost. I'm pretty sure the 1st gal is deactivated by now too.
My current CMC never pushed me. She would bring up signing on at all crops / classes / workshops as an open invitation to everyone.
After a few months of getting to know her I approached her. And, I'm signing on this month! I have asked her all sorts of questions, probably some pretty stupid ones, but she has been great about answering everything.
I've asked the same questions you have presented so I'll give you the answers she gave me.
The Kit is $119 plus tax for the month of March.
What you see pictured in the catalog / flyer is subject to change. For example, I think a Ruby album is included now instead of the Sapphire album.
Each 3 months / 90 days you need to have placed an order or orders equaling $500 retail or you will be deactivated. I need to have her go over something with me on that ... she had mentioned having your order(s) equal $560 for some type of bonus.
Shipping for each order less than $800 retail is $18 per shipment.
Don't keep tons of inventory on hand. Should you have to deactivate you really don't want to have $$$ wrapped up in product collecting dust in your closet. Consumables would probably be okay - tape runners, pages - but I'd see if your Upline would be willing to make trades with you especially for non-consumable items, at least until you see if being a CMC will work for you. Mine has already said that she would.
Resist giving your discount to everybody everytime. For me at least, where do you draw the line at and who do you draw it with? I'll be honest and say that I do plan on giving my best friend a discount but we're still "arguing" over the amount - she wants less of a discount than I'm planning to give her
I haven't seen all the Business Enhancements you can buy as a CMC but they do cost so don't go overboard when you first start out.
I didn't think I had a large customer base either but once I started writing down names of every person I know - relatives, neighbors, church, parents of my children's friends - I was surprised. That's not to say they'll all be interested but maybe they'll have a friend who they can pass my name to.
I was encouraged to write a letter to everyone and let them know how excited I am and how I look forward to helping them preserve their memories ... then follow up with phone calls.
Worse case scenario - by the 90 day mark you realize it just isn't going to work ... at least you tried.
Let us know what you decide! And feel free to ask more questions ... I've got a small list going of things to ask my CMC. She's great though. I think she'd rather see someone ask questions and be informed than just jump right in and fail miserably.
ETA: I don't mean to imply that there is anything wrong with being a "hobbyist". I think that is how my 2 previous CMC saw their business and that's fine but I don't think I would have had much support from them. My point just being to sign under someone who you feel would support you whether you run your business as a hobbyist or as a career.
For example, my 2nd CMC would talk about how she got this great product from this company or that company, I totally freaked out when I saw another scrapper use Scotch Tape in her album but she just shrugged it off ... and that's fine, it was her business to do with as she saw fit but I think in the end it hurt her sales.