The job opportunities in the mountains are not so great. Considering proposing a telecommunting position to present employer or searching for a similar type position with another firm.
Giving your current employer this ultimatum is a risky proposition. If business is booming, they may say yes, and rescind later when business slows down. I've seen this happen.
I hate to burst your bubble, but based out what you wrote your expectations are too high (RE and build a 450K home in 3 years.)
You need to run some simulations (use FireCalc). You'll probably need to work/save more, keeping spending down, if you want to RE (within 10 years.) Do you really want a $450K home? IF so, you'll be working for a long time.