I was in a similar position at your age: well paid in a job I did well, high savings, single/no kids, but realized that wasn't what I wanted to be when I grew up. The first step is figuring what you want to move TO, which it sounds like you have. I did the same: I didn't want to crunch numbers all day, I wanted to run a factory.
Step 2 is determine the different options for achieving that new goal. For me, one was just switch over and get an entry level manufacturing supervision job. The other was get an MBA and use that to change careers. I decided the MBA made more sense, and researched the 2 schools that worked the best for my career change.
And then I waited, not sure on when I should take the plunge. Man, it was hard to leave the golden handcuffs. I lucked out because as I was dithering, my employer did a restructure that eliminated our department. Woo hoo!!! 6 months severace, baby.
I think I had about the highest pre-MBA salary in my class. And I'm likely about the only one that took a pay cut after my MBA (still 6 figures, though). But I was deliriously happy in my new career.
Many here are saying stick it out and then "retire." I say, if you want to continue to work after FI (and I did), life is to short to stick with a crappy job. Happiness is what MMM is about. It's not all about life begins after full FI. It's about save like a maniac so you have options at any point in your life and can pursue your dream.
So back to you. It sounds like you've got the skills you need, you just want to side step over to a different ladder. I would start job hunting, doing a couple things:
1. Develop a good story that connects the dots. How has your career path led you to what you want to be now? Tell that story well, because employers won't see it on their own.
2. Dumb down/adapt your resume to tell that story. Don't scare them with how much you make now. In the interim between losing my job and starting b-school, I decided to go work some minimum wage factory jobs, to get a feel for what it was like from the floor level. I went to a couple temp agencies and told them what I wanted to do, and they looked at me like I was from outer space. So I changed my resume and went to a couple more with a new story. Instead of "Director of Dept X" I just listed my job as "Dept X" and my duties as "general office." I said I wanted to make stuff instead of sit at a computer, and that was compelling enough to get me a couple temp gigs.
Go for the marshmallows and rainbows, it's totally worth it!