Tickets are not recognised legally.
they can be used to show understanding to an new employer but you need Australian tickets.
My Best Advice to you is to head straight to Perth for two weeks.
Pre book onto one of the Scaffold courses there 10 Days long, at the end of which you will have completed your Basic, Intermediate & Advanced ticket for around $2000.
Perth Training Centre - Basic, Intermediate + Advanced Scaffolding Training Course
This basically having an advanced ticket will secure you the best pay rate available.
Perth City looking at around $35(£22) p/Hour plus any hours worked over a 8 hours in one day usually attract penalty rates so hours 9/10 your on $52p/h then hours 11/12 your on $70ph.
Its 80% Kwik Stage over here so if your not to flash on your knowledge or skills of erecting it, id try get some practice in befre you leave so you dont look completely stupid on site.
Leave your spanner at home because it wont fit the bolts here as they are 24mm compared to 19mm.
As for your confined space you could try for RPl (recogition of prior learning) but its a day course over here maybe day and a half if you do breathing aparatus as well so prob just easier to do it.
You will also need to get a working at heights ticket, which allows you to wear a harness.
BEWARE alot of the trainning you recieve over here will be sub standard by comparisson to what you have done in the UK.
Just sit tight listen get the certificate and get on with it.
Hope that helps you out bro, if you need any more advice just let me know.
Having Advanced, W@H & Confined space will be a big help in getting mine work which is where the real cash is to be made.