Heavy Civil PM - Fair Remote Project Comp Adjustment?

I’m a heavy civil project manager, closing in on a Sr PM promotion. Manage projects between $30 and $60mm.

My total comp now is $168k base, company truck for unlimited personal use, and a discretionary bonus ranging between $20 and $70k a year.

My company is chasing after a large project in remote Alaska that would have me work a 19 on 7 off schedule, flying back to Seattle on off rotations. This rotation is 6 months a year (summer) the other 6 months is in office planning (winter).

What’s a fair comp adjustment to request? They need two PMs and nobody else in the company besides me and one other guy have said yes. Feels like they can’t build the job without me going, the company is going to make a lot of money on the job - that seems like it should warrant a big salary adjustment for me to give up time with 2 young kids at home.

My initial thought was Salary+OT for hours worked/traveled while on rotation, and a $100k bonus at the end of every season.