Using the new Price Quotes and Invoice APIs for creating marketplace bids

Hi, I’m working on a reverse-marketplace type of functionality, where I want users to be able to send proposals/bids to each other. If they accept the bids, it should proceed to payment. I’m wondering whether the new APIs aka wix-billing-backend are a usable solution for this.
I need to associate a bid to a posted project, the person who posted the project, and the person posting the bid of course. Would I be able to do so and retrieve the necessary info to display in dynamic pages if I use this API?
Appreciate your thoughts on how best to implement this.

@givemeawhisky would you know?