George
If you check out the subject on here by doing a search then you'll see that getting a loan can put you in a positon of terminal deadlock with no room to move! So by all means think about it, just don't go running off to the bank too soon ...because the repayments will probably double your training cost in real terms if you include the stress of knowing you have a $300 repayment every month for the next ten years (and no house afterwards!!)
Your plan sounds good. Make sure you're flexible and take up ANY (any!!!!!) opportunity that is offered to you in these early days, however.
Regarding instructing - Airlines look for experience of t/prop, multi engine minimum normally (but it's definitely not impossible to get a job with single engine piston instructing - ask one of the many who have) but that's more the motivation to take any t/prop / night frieght / ferry whatever work that will make you stand out at the end of the day. If it is an airline you're after, that is, and not instructing (which can be much more rewarding for those that do it!)
Keep your head screwed on and your ears and eyes open - and never give up.
Andy