Chevrolet Repair: questions about wrenching, fluke multimeter, repair question

Question
Hi, sorry to waste your time with a non repair question.  I was wondering about being a mechanic for a dealship.

I am 38 but college trained in automotive.  no experience to claim but have been running a repair shop from the house for years.  Am I too old to be a mechanic for a dealership?

What average amount of money does a dealership mechanic make?  I am not asking what you make.  But for a ballpark figure.  Between what and what?

Is dealership mechanic something a man with a family of 3 kids can support thier family on?

What kinds of training should I get to make myself more marketable?

Thanks for your answer.  Dont just give me a standard preformed answer like 'out of my expertise'.  I am seriously looking for some advice of if I should pursue a career in this area.

thanks

Answer
A dealership mechanic can make from 25000-100000.  Ask your self if you have expertise in electrical problems.  Do you know how to do testing with a fluke multimeter and do you know how to use a tech 2 scan tool and are you familiar with the newer vehicles. Most cars worked on in the dealer are within the past 7 years. You also have to have the ability to work quickly as most higher paid techs work commission. You also would want to take a job that put you right on the repair line.  You want to find a place that has work and a shortagte of techs. Other wise the other people there may not welcom you as you would be "stealing" there work.