Buying a car that is under finance

G'day all,

Hoping for some clarity here, I'm in Qld and buying a car today. I have paid a $500 deposit after inspecting it last week.

I decided to do a PPSR check and found that the vehicle is under finance.

When I contacted the seller, she said that she will pay out the loan when she has the money i give her for the car.

She made no mention of the car being under finance at any point prior to me asking.

The seller also said that she has a "small payout", but the PPSR shows security interest registered May 2023, Ending May 2030.

I don't want to lose my deposit, I do want the car, so how can I best protect myself?

Many thanks

Edit: UPDATE

The seller arrived yesterday after driving for 80 minutes to get here, I let her know that I will need a statement of release from the lender prior to completing the transaction.

The seller then advised that the loan is not in her name, but her husband's, however they have already paid it out. We called the lender for clarification but they wouldn't give information because the husband wasn't in attendance.

The seller apologised, stated that she was unaware that she needed the letter and that she is happy to come back once it's finalised.

The seller also left both the seller and the buyer rego transfer paperwork with me, fully filled out on her end.

I haven't paid anything beyond the initial $500 deposit as of yet but she really doesn't seem like a scammer.

Apparently it can take up to a week to get clear title, so I'm happy to wait, and she is happy to deliver the vehicle again once it is all clear.