Hi Frank,
You forgot to mention what stage you're at now.
100hrsTT/200/ 300?
If you want to pay for every hour up to your FAA (I assume) ATPL go ahead.
That's gonna be another 1200x $70=$84,000
How are you ever going to reach even part 135 minimums if you are going to timebuild?
And explain to me how sim could be more valuable than actual flying?
You''ll get plenty of IFR time if you do your CFII also and work at the right school.
Instructor not relevant to daily life as a pilot?
Where did you get that from?
What about working long hours 7 days a week, flying with people that are total strangers (initially at least)
As far as I know airlines (especially in the US) hold CFI's in higher regard than others during the interview process.