Hello, you also posted regarding the change in marital status of your partner, and now the skills and English assessment are expired as well.
I'm not an expert nor a MARA agent but IMHO your best move will be to let this invite go, settle your deficiencies, then create a new EOI and hope to get invited again. With all your concerns, there is a significant risk that your application will get rejected.
My 2 cents though, maybe a legit MARA agent can find a workaround for your concerns. Good luck!