Your income is in the top 13% (plus bonuses). Your mortgage rate is dead low. You say you want to retire at 54 (~25 years from now?), but think you NEVER will??
I honestly don't even believe you. That's how distorted your view looks to me. I see so many people here telling you you can do it, but you're in such a fantastic position, I really can't believe you don't already know that.
Obviously, as others have noted, 5% inflation is likely a bad guess, but a 7% market return before inflation doesn't seem unreasonable to me. Call it 5% after inflation. That's a typical projection from every major investing firm (give or take) for the next decade, at least. If you choose to blow $140K a year, well, duh... you won't save a lot.
If you live on $70K and save the other half (EASILY do-able if you barely even try to follow general 'Mustachian' suggestions), with $50K+ already invested, you're at over 3.5 million by 54, and you'd have to be nuts to think you couldn't retire at typical retirement age. And, again, that's assuming the market does HALF the life-long avg. for the next 25 years!? Oh, and assuming you never get a raise or bonus ever again.