I'm sure you know the layout of the modular system and the usual ways of climbing it.
You'll need 200+ hours to start a Instructor rating and get a low paid job.
You'll need 700+ hours to get a job with air taxi firms due to insurance reasons.
But there are 200hr pilots who have managed to get jobs with TP/Jet operators. I don't think 30 is too late either, take a look at the 'Am I too old? And how old is too old?' thread. There are quite a few people in their late 30's and early 40's getting RHS jobs on jets.
So the question is how quickly can you get a fATPL? More often than not this will boil down to funds as it can be gained in 1 year.