I’m in the same position as you, Lyndon, so I asked Jared at RAAus. Here’s his reply.
I’m pretty sure that others on this site have already done this too, but I’ll leave them to leap in and comment. If the worst comes to the worst, I can delay the actual claim until closer to June ‘27 (the cutoff date). It just means that the bank balance suffers for a while, but the purchase has to go ahead now while I’m doing all the wiring.