Contemplating Front to Middle-Office Move - Need Advice?

Hello all,

For some background - I currently work in acquisitions at a relatively well-known shop and am 2 years out of school. I'm currently living in a tier 3 city (if you can even call it that) and desperately want to move to NYC or LA. 

Obviously the job market isn't great and I'm basically getting no interviews for the very few front office roles I'm applying for. I'm currently in late talks with mega-fund for an IR role and culture within the team, hours, pay, etc. all sound great relative to the low pay/high grind place I'm at. That said, I worry should I not like the role it'll be nearly impossible to pivot back to a more front-office role.

I'm honestly pretty burnt out from the long hours but I also think that is partially attributable to also really not enjoying the city I'm living in so morale is just generally lower. I've also always thought IR aligned naturally with my skillset. However, I also recognize this transition could kill my earning potential irrereperably.

Some questions:

1. I realize its easier to transition into IR than out, so should I hold off until I can find a more deal oriented role? Or do you think it's feasible to give this role a go and if I don't love it pivot back out?

2. Are B-school opps decent even as well with an IR background - should I want to pursue that?

Would welcome any advice on if this would be an extremely idiotic move. Thanks!