Thanks for your question.
While we do offer tiered pricing and discount options, we do not have a custom quote feature at this time.
I suggest checking out these FAQs for more info on what is available:
How do I create a promotional sale?
How do I create discount codes for my customers?
How do I create price tiers?
I am not aware of any current plans to introduce custom quotes, but I can absolutely share your request with the rest of my team.