Hi Funshine and welcome aboard the TP
Love your username, Funshine was my first and only Care Bear as a kiddo <33 Ahh I miss that little bugger!
I second Pika, that sounds both useful and like lots of fun to have your mom get in on the 'treasure hunting'
Also, if you have questions or are in doubt, i.e. with pony IDs or price checks and such, just ask away! Oh yes, and don't forget to show and tell about your finds, it's always so much fun to see others' luck when collecting and hunting.
Once again, welcome, and have fun!