Hi Desley,
I think dogs are allowed to be shot/baited but I think (could be wrong here) that dingoes are protected. So if they're pure dingoes not much other than what you're doing and normally they keep their distance if no-one is feeding them close to you.
We have them down the back here and here them singing, but they are mainly crossed with dogs (grrrr if people would desex their dogs and cats) and some look very german shepherd a big problem, but still they keep down in the gullies and deep in the bush.
A pack would kill an alpaca, I know someone who lost her female and the cria to a dog pack.
I'm like you not too comfortable with the gun thing, although DH would like to get one for when we move... I'm just not sure, so at the moment say hmmm instead. We'd need to do a course to get a licence I think and then it's got to have a certain gun cabinet etc etc, so it's not as easy (in NSW anyway) as what it seems. So even though we've both used a gun (Army and Cadets) in the past I'm more to waiting and seeing before leaping into that one.
Fingers and toes crossed, that winter passes and the dingoes have food in their place, so they don't need to come to yours.
Vicki