It's a no brainer - that amount of debt for a lifetime career that's the envy of all your mates!
All your jealous mates will be earning loads more than you for years, without the 70k debt. If (like most of us) you do not have wealthy sponsors, then I would recommend earning the money first and entering the profession in your late twenties/thirties.
There are enough opportunities in life to aquire debts (mortgage, kids, etc) so don't handicap yourself by buying the BS of over-zealous wannabes and training organisations.
Get yourself a long term plan to achieve your goals REALISTICALLY.
Try other options if you cannot wait - RAF & sponsorship primarily. Please do not get into debt, it leads to more debt and desperation.
I am not in debt by the way (did it in my thirties), but have seen desperate people doing desperate things.