Any way to restrict quantities/dollar amount per customer?

Hi!

Client approached me about limiting a certain product line to $150 per month per customer not in a certain group.

For example, a customer that purchased a line opener deal, would be able to purchase an unlimited amount of for resale items from this product line. However, if someone is purchasing these items to try out, they would be charged an additional 15% and be limited to $150 a month of not-for-resale product.

Is this possible from within SAGE 100 (they are using Sage 100 SQL, version 2015)?

I've thought about having a custom report or something similar, but I'm open to suggestions. The users are not the most tech savvy, and the simpler the better.

TIA!

Isaac