Z Scale where/what to buy?

I want to build a coffee table railway, a single looped track just to let the model run round. A steam train with 2-3 passenger cars.

I think the easiest way to do this is would be with a starter kit + an extra set of tracks. The AZL and Rokuhan tracks look easier to work with than the euro tracks, I also think they are cross compatible?

I am in Australia and would appreciate a recommendation on where to buy and what I should buy.