OMG.
While P1 time is nice to have in rotary job market, people do instructing or heli tours, mustering etc TO GET INTO TWIN LIKE 412. Beauty. Sure, instructing can be rewarding, but frankly,
how many fresh CPL(H) holders around the world - the ones not lucky to own a bird or have special relations/tons cash for JAA IR(H) etc,
would give it a pass, flying in 412? 
Sure, power line inspection isn't instructing, but it's also (in my view) fairly routine flying compared to fire fighting (and in single piston!)
I thought one gets to fire fighting with reasonable experience only.
Sure, I'm talking as 'modular' trainee, at PPL level-ish (bar the FAA credit card), but having read tons and tons of stuff here and elsewhere, all the job ads for all sorts of utility, fire fighting, HEMS etc, they're very picky as to whom they'd hire. Insurance, experience, hours. It's all that matters.
God, please let the things be easier with my saving/funding to finish up and I'd sell one of my family members (and no, I'm not married/engaged) for that chance.
As said, you can do some other flying off season without going near max hours flown a year. Or talk about the most generous holiday allowance in the world, paid OK money per annum.