To get your restricted license for elapids in Queensland they like you to have completed a venomous handling course, have two stat decs from experienced handlers stating that you can handle elapids safely, a locked sealed room with locked escape proof enclosures and preferably have a first aid certificate. Its been 3 years since I have applied for mine and I believe it has not significantly changed since them. For the most update information you are best to ring DERM or whatever they are now just to verify those requirements.
You having completed a handling course is an excellent first step to keeping elapids. What I would highly recommend now is find a local elapid keeper and see if they can mentor you on the handling and husbandry practices you will need to keep elapids safely. Courses are great but they do not teach you the hands on stuff that you need to keep them. I said it in the other post and I will just reiterate it here, elapids are nothing like pythons to handle or keep. You need to always treat them with great respect as a mistake working with the will put you in hospital or possibly kill you.
A red belly is probably one of your best choices as a first elapid. They are a good size snake to work with, generally quite calm, easy to keep and fairly forgiving if you do get bitten one day. Certainly wait until you are very experienced before considering keeping any of the taipans. While inlands are generally a bit calmer than coastals they can be a bit bipolar from day to day. Some days they are super placid to deal with then the next day they are trying to bite your face and they are also extremely agile. Not a good mix if you are not experienced to deal with them.
Hopefully this helps you out a bit. If you have any further questions feel free to message me and I will try to help as best I can.
Cheers Cameron