Link UDT to AR_Customer?

I need to add a million fields of crap.... sorry, meaningful information to track against customers, but this is really something that belongs in a CRM. We do not have a CRM and so some genius wants this done in Sage 100. I have reservations about adding many fields to AR_Customer and then opening up the customer master to everyone so that they can enter non accounting related fluff. 

My thinking is to add a UDT and some how link to AR_Customer, but I'm not sure on the inner workings of Sage 100 and if that is possible.

What are my options here?