I understand about the budget issue.
This customer is very big company.
If we can explain why his budget is no not enough, maybe he can discuss with management to try.
As I inform you customer want to replace spindle 6 units.
But he need to make sure by order the prototype after the prototype is pass. He will repeat order more.
I think PBA should offer solution for customer.
1.Let me know the estimate prototype price.
2.Let me know the estimate repeat order base on 5 units.
I will visit him to discuss about engineering cost for prototype and quantity of order impact the unit price.
After customer get information, I will see how to go on.