General Questions About Calendly for Small Business

Hi there, I work for a small organization that has complex scheduling needs. I’m wondering if someone can help me determine if Calendly will work for us. 

1. We have two sides to our business -- one is a retail side where we sell merchandise, the other is a buying side where we purchase items from the public. We will need two separate calendars for both sides of the business. We will need our customers to be able to book with a certain associate, or if that associate is busy , a next available option will be needed. We will need a master calendar that shows both the retail side and the buying side appointments.
2. We also have in-store events where multiple customers need to be able to book over the same time slot, even if all associates are busy during that time slot. Does the Group scheduling option accomplish this? What if for these events, we want customers to be able to book with one specific associate? Will it then need to be “round robin” booking? Can we create “ghost accounts” if we want customers to be able to book multiple appointments over the same slot (so the customer can just select “next available” ghost account if all associates are booked)? 

Thank you for helping us get this process started!