Gosh. If only there was a way for those two to have actually done something about this....
Anyhow.
Strike at range comes from 4 platforms. It's about effects after all, not platforms:
1. submarine. Collins is a capable platform, Attack should be better. Advantages are stealth and reach, disadvantages are low ammunition and launch signature. Already in service - question on ammunition holdings
2. surface vessel. Anzac / Hobart pretty good. Hunter will step up from Anzac. Advantages are numbers and reach, disadvantages are low ammunition (including what mix do you take) and low speed. Already in service or being procured - question on ammunition holdings.
3. air launched. F-35 / F/A-18F / P-8 (
). Advantages are response time, flexibility and numbers, disadvantages are enablers and vulnerability. Already in service - question on ammunition holdings.
4. ground launched. LAND 8113. Advantages are simplicity, easy to hide and numbers*, disadvantages are political and range. In procurement - question on ammunition holdings.
We have multiple options. We don't need to put a platform overhead, we just need stand-off munitions with enough range to hit a target without putting the launch platform at risk. For the most part we have that. Even better, we have options (including options that may utilise the same missiles - look at SEA 4100 and LAND 8113). So, the problem isn't platform types. Sorry ex-CAFs - you don't get more aeroplanes.
The strike mission has 3.5 problems.
1. Ammunition holdings. You need enough weapons to get through the IADS. Now, there is going to be a significant number of targets that need hitting, so you need lots of ammunition. You can either stockpile (expensive, stock runs out, only have what is hand) or build (expensive, creates jobs, can spool up and down to match need). But fixable - and for less than more Attack or B-21s.
2. Launch platform numbers. We have enough submarines and air platforms. If you can't put an acceptable strike in with 72x JSF then you need to leave the ADF. And between 6 - 12 submarines gives you almost as many options. The risks in having only a handful of surface combatants (with really limited #'s of tubes) and land platforms mean that parts of your flexibility are leaving. Extra surface combatant's isn't really an option at the moment (unfortunately...) but LAND 8113 could be expanded. These platforms are trucks - simple to maintain, simple to purchase and easy to use. Triple the buy and you have a Regiment - now you have multiple locations and real operational flexibility. You can even use the ARes (at last, something useful for them) to operate the system - it's that easy.
3. Targeting. What is looking at the target, providing information, BDA? How do we cue these systems? Satellites? - ok, but you need sovereign platforms or the support of the US (and them not using the gear). GPS? Hope those birds are still up - and there is no jamming. The basic int functions? Hope that's supported with appropriate analysis and comms networks - again jamming and threat counter-intel is going to hurt here. This part isn't addressed by most looking at strike - but we need to know what, where and how we are hitting things.
0.5. Politics. Normally I'd rate this higher, but if we are clever we can use it to solve as many problems as it creates. Not domestic politics, but rather international - especially Indonesia. Any strike options will concern them (rightly or wrongly) - we need to build that relationship and work with them to see us as an ally. Even bring them under our conventional strike umbrella. This also adds advantage of range - with Indonesian permission we can put a LAND 8113 Bty near the equator - adding a "free" 500 - 2500 km of range).
So all up, the ADF is already mostly there, the ex-CAFs are moaning about there service instead of the Joint Force, the problems are enablers - not platforms, and there are options. For much cheaper than any of their plans we can do the mission now, and only get more flexible in the near future.
Edit - note this only considers kinetic options. There are a whole bunch of non-kinetic options out there that might be able to do the job, depending on what the job is. Iran's nuke program wasn't delayed by a cruise missile, it was delayed by STUXNET. Again - what is the effect we are trying to achieve.