Please help ladies need ideas

So this post will be long (I am sorry)

My partner is a massive wwe fan and they are coming to Australia for a live paper view show!

The problem is the tickets he want are over 3000$ and god I wish we had that money for him! He has gone threw so much in the last 2 years with his son being a prem baby and in and out of hospital his hole life! His partner at the time while there baby was in hospital was cheating on him with his own dad! And now poor bubs mum is no longer in the picture at all! I came on the seen when bub was. 9 months old and have been mum ever since And now we also have a baby in the way ( I’m 19 weeks) so money is tight we live with his parents who help out a lot to. Bub is still in the feeding tube and his formula is 80$ a fortnight! His on single parent payments and we can just make it threw the fortnight! I had to leave my job at 6 weeks pregnant due to not being able to work as I was an apprentic pastry chef and was up early and home late and doctor said it wasn’t healthy!! So he is sporting me atm too 😔 he has done so much and I want to find a way to be able to help him coz he deserves it more then anyone

My question is how can we get that money! What can we do 😔 I feel so bad for not being able to be able to help