Burned out M&A banker moving to Corporate (FP&A, strategic finance, corp dev type role)

I'm an analyst who lateraled to banking from an accounting type role and I've adapted pretty well to the role. Technical work isn't hard and I've gotten into the groove after these past 1.5 years. Hours aren't even the worst, part - it is the unpredictability and the way we are treated by the seniors. It's just a nonstop grindfest and I have no time at all for...well anything. 

My first few years as analyst I haven't seen the big financial rewards yet, but I know the progression will speed up as I become an Associate, but I realize that this type of role really pigeonholes you into either more IB or PE, which are both consistent grindfests. No other role with reasonable hours will pay you this highly and at the same time, your skillset gets pretty niche (a corporate role, unless its specifically corpdev, will be more operationally focused and such)

I have an opportunity for corp finance / corp dev / strategic finance, but basically high level FP&A type shit but it's remote and works like 35-40 hours

Comparison: IB is about 200k TC (currently), while new role is 160k TC. Where things get dicey is in a year or two, where IB becomes about ~300k TC and the new role is going to stay around ~170k TC

My concern isn't that I'm missing out the financial rewards but it is that I'm getting stuck on the high-paying treadmill where I must keep working in IB because they pay so well and no other role will take me because I become too expensive and not experienced enough operationally. I know it's a deeply personal decision, but anyone have experiences that may help my decision?