Here are my thoughts. I don't claim to be correct, these are just my opinions.
A lot of airlines care very little on what you've done, all they really care about is the flying experience you have and that you're the kind of guy who can do the job they're interviewing for.
I'd say, if you're going to do this, look into how you can afford to do it full-time starting as soon as you can. You'll be, lets say, 32 when you're qualified, and could perhaps instruct on weekends or whatever to build some more experience. Then airlines should start taking notice to your CV.
Or, take this job, and do all the same training and be ready when you're 37. I think to
some airlines there's a great difference between the ages of early 30s and late 30s. They wouldn't admit that of course.
Anyway, just my thoughts, all the best with the decisions you make.
