Any tools or integrations for accepting deposit and scheduled balance payoff?

Has anyone found a simple solution for offering payment terms with a deposit for high-ticket items, coupled with a scheduled payoff date (basically 2 installments)? My client is in Australia which has produced several dead ends such as Shopify regional limitations.

I don’t think this needs to be hooked up to the native ecommerce of Webflow since it’s very limited, and I would have added complexity trying to get the successful payment response to send the buyer details to MailChimp. I didn’t see anything regarding this with Foxy.io and their pricing structure wouldn’t make sense due to margins and volume.

Thanks for any tips.