Sounds like you have an eye towards what you want. Having been power boaters you can surely use all that experience to start over with sail. You don't have to unlearn too much at all. Just some new things and you should fit into the boat just fine.
I think the key is to find what works right for you. We have 4,500 boaters here and we all have ourt own story. You'll find most of us think we have the way that works for us. It's not always an easy path, so if you need help figuring it out you can find a lot here.
There isn't one right answer and there are a lot of things that work for others that won't work for you. We are all different but we all like boating
in all sorts of different ways.