Hey Dan,
Good to have you along, as for the fence question a few people up in stage 1 did it whilst they were building, they just left the posts and removed the rails with the palings fixed as sections to get access to close to the fence bits.
There is the downside that any damage is at your cost if you go that path.
For us as our frontage is so small and close to the house at the borders, as it is to get our formwork in they've had to shift the fence out slightly to fit it.
When it does come time to fence, you can either contact clublinks or frankston council to get details purely so you can consult regarding fencing.
There is a few threads around the site regarding fencing, if you click search up on the toolbar above and put in fencing theres a fair wack of informatio available.