The firms which employ the most CFAs are accounting firms and investment banks. If that's where you want to work, then it's a good strategy but it's a route into deeper, more functionally-specialised, financial work rather than a route into consulting or finance.
The fastest way to qualify will be to take a CFA-partnered masters programme: these are excellent programmes focussed on the first and second levels of the CFA.
http://www.cfainstitute.org/partners/university/Pages/cfa_program_university_partners.aspxIf you want to study part-time, then you are already aware that the percentage of who complete all three levels is very low.
Personally, I think better preparation for financial management or consultancy is an MBA. If you have the time to take the CFA, why not take a part-time MBA?