Sink or swim? Please advise!

SO, I have an opportunity, I guess you could call it that, at work to go to a different store. It is a good opportunity on the surface. Higher volume, newer store, more money, more responsibility,etc. I love where I am now. My team is like my family. WE have been together a long time. We are very successful. They know me, they know how I operate, and it truly operates like a well oiled machine. There would be good succession in my store and I know it would be okay. SO what is the problem?
Well, the people in the new store already don't like me. Sounds juvenile right? Well, they either feel they were entitled to it, or they think I am mean, etc. The old Store manager and I never really got along super well, and our management styles are completely different. COMPLETELY! My boss keeps reiterating that I have to get them to BUY into me, and that I have to go in there and make them like me. Well, I adapt pretty well to change. I embrace it. I take it and I make it work. I can get along with most people. The problem isn't the change, or adapting on my part. The problem is knowing how these people feel about me, and feeling like no matter what I do, I will be dissected and wrong. I am certain that if I went in there and did everything EXACTLY like the old store manager, it would still be wrong,somehow! I am nervous because I feel like in a certain way, I would be setting myself up for failure! I am VERY successful in the store I am at now. Even in this economy we are killing our numbers, and have had very positive results, since I took over. SO has this other store. My fear is that "shaking things up" will prove negative for both stores in a sense. I wonder if they will all give up, out of spite. I wonder what is going to happen. I wonder if I am really ready to take on such a task. I thought it would be fine, until my boss laid out the feelings of the other managers, and what her thinking will be. She keeps saying, Courtney they are going to pick you apart. They are going to try to prove all the reasons why you shouldn't be there. They are going to try to make your life harder. I feel like I can find a way to make it work. I can go in with my typical positive attitude and outlook. I can adjust to their styles of communication, work as hard as I can to achieve forward motion, and a good working relationship and environment. But on some level it is out of my control, as to what they are willing to open their minds to! I can not create their future, I can give them all the necessary tools, and vices, but they will only take them so far. The rest is up to them. As one person once said, Life is not what happens to you but what you do with it. They are the only ones who can make that choice. They are the ones who decide to sink or swim. BUT...do I decide to take on this challenge? DO I jump into the deep end and pray I can swim, or do I remain on the lifeguard stand, and pass up this potentially great opportunity? DO I let the fear dictate my future? The answer is obvious...right??? Or wrong?