TOPIC: How to Include Quantity with a selection limit

I'm trying to have users sign-up for a volunteering event where they can bring in one or more types of an item. I know how to setup the conditional fields to do this...my challenge comes when I'm trying to set the selection limits.

I can not figure out how to do this. For example, Jane Doe can bring apple pie, if I setup the conditional field for quantity, how can I manage the selection limit? If qty = x1|x2|x3|x4 and the selection limits need to be 25 apple pies, I can't put in 25|25|25|25.

Thoughts? Is this do-able?

Thanks in advance!