I think Ryerson takes your best 20 courses no matter when they were taken. You might be able to do apply as a mature since you've been working for more than 5 years. That's a really good LSAT, so I would say it's worth trying.
Why is your GPA so terrible?
If you’ve been taking undergraduate classes for 8 years, and are capable of a 175 (I’m assuming without any sort of accommodations), you are capable of getting As in undergraduate courses.