Order Split Payments

(Cross posting from Ticketing & Customer Service Forums to here in hopes to get a response or suggestions!) 

Hello!

I am currently working through a recent ask and wanted to share my situation with you all and inquire about feedback and suggestions.

Let's say student tickets are $10. Students can purchase tickets online, in person or over the phone using a code. We received a grant to help students pay for tickets. The idea would be for students to pay $5 with a credit card or cash and then the grant would purchase the other half of the ticket valued at $5. The ticket is still worth $10 at the end of the transactions and the revenue is properly accounted for in ticket sales. We are expecting to process 2,000-7,000 student tickets next season. :)

I am thinking that we offer student tickets for $5 and enable the price type to be editable at the price type and performance level and default the price type to hold at box office. Every day, a box office staff member will identify these recent orders and price details the price type from $5 to $10. This leaves a $5 amount due. Next they would pay off the order with a new Grant Payment Method. Although this process is manual and incurs a delay is the total sales revenue ($5 per ticket), I think it is the most streamlined as tickets are not being exchanged and new orders are not being created. Tickets will be held at the box office so the student buyer would not know the difference. 

Thank you!
Cheers!
Joe