You have a deposit of 654.38+million, plus the provident fund you withdrew in Shanghai. If the down payment is not enough, I suggest you buy a second-hand house instead and apply for a zero down payment bank mortgage through your local reliable loan agent or real estate agent.
If you already have a full property, you can apply for a mortgage loan from the bank; The property you are going to buy needs to apply for a mortgage loan from the bank, so if the down payment is not enough, you can apply for a zero down payment to buy a second-hand house through a loan agent or a real estate agent.
I am a loan agent in Chongqing.