Prepayment instalments for logged vouchers

Hi

We purchase finished goods from overseas, and the contract with our supplier stipulates that we pay 90% of the invoice value immediately, when we receive the bill (before stock receipt) and the remaining 10% when we have received the goods into our warehouse, which can be up to 60 days later.

I am wondering which is the best way to process this voucher for payment. We are using logged voucher / Voucher match automation for all our other international purchases.

I have looked into using

Retainage

Advanced Payment terms

Pre-payments

Logged voucher

Wondering which of these is the best way, if any, to go about processing this invoice in this scenario.