You have covered most of the important considerations already, but also think about availablity of aircraft and instructors - if you can only fly twice a week, it will cost you more in the long run. Also consider what type of training environment will get the best out of you as we all learn better when we feel comfortable.
It may be obvious, but the quality of your training will impact to only which jobs you get, but your career progression as well. I have heard stories from airline crew of new recruits coming with glowing reports, great CRM etc, but whose careers have been short-lived because they lack basic flying skills.
Feel free to PM me for anything else.