Hi there, luvnursing13. I don't think it matters where you do your pre-reqs. If CCRI is a more economical choice, I would do it. Just make sure that your courses at CCRI are comparable to RIC's courses. I believe the Admissions Office at RIC has a reference book that you can use to make sure you're taking the right course. I'm sure CCRI will have a resource too.
As for the schedule, it can be a full course load if you want it to be. As a 2nd degree student you can petition to take all 4 intro nursing classes together. That's a lot to handle if you plan to work too. When I was attending, the schedule was 2 morning classes back to back and at least 1 afternoon class which met 2x a week. Basically, you have class 4 days a week. You can check the online course catalog on RIC's website to get a feel for the schedule.
I actually took a slower route through the program since I was working nearly full time. I ended up taking 1 or 2 classes per semester. It depends on your personal preference, how strong a student you are, and how quickly you want to get through it. Personally, if I had to do it all over again, I would go to one of those direct entry graduate programs to become an NP lol. Now I have to go back to grad school one day. Oh well. Good luck with the program!