Your right, 50 isn't that much and yes an HDRI map would be a big benefit. To be honest, I don't want to think about materials. I only want to apply them to an object with a reasonable expectation that they will render accurately and relatively fast. Most of my thought is dedicated to what I am trying to communicate in the scene. For the most part, this has been the case but like I said at the beginning, ice is not as simple a material as I had expected and I needed to research it. Thanks to your feedback, I think I have something fairly close.

I hope some of this info is beneficial to any of you that are interested in the topic.