Birdman
With respect, the modular route has slowly died a death over the years. Thanks to P2F, there are many PPL/GA instructors you are stuck and unable to progress their careers.
It will take you at least 2 years to get your CPL/IR and then you would have to apply for an instructor rating. How old are you now?
I'm afraid some rich 22 year old CTC graduate is going to be well favoured over a mid-30s modular route grafter. That's simply the way it is now.
Why would you give up your current business and lifestyle to pursue a dream that may well end up as a nightmare?
There are no guarentees, no matter which route you take.