I wouldn't if I was in your situation either, personally.

You might be able to find a student midwife who lives in Port Augusta but attends uni in Adelaide? Chances are probably slim though. I had a student midwife and she was great...but there is always a chance they will be at another birth/at uni and won't be able to attend anyway.

My personal opion - of course, not meant to offend:

You have organised things nice and early. You're still in 1st tri. If you "train" yourself up, educate yourself, looking into all the hypobirthing stuff, learn about some personal pain management, some assertiveness training, learn how to write a good, assertive birth plan etc...I see no reason why you can't be a perfect example of a strong female and DIY! :-)

I would personally say don't choose a family member. I think sometimes you need someone with some distance from the birth so they can focus on helping you and not get all emotional.