You are starting out in better shape than most. The IMX rod is a good all around choice for the fishing you plan, especially in 8.5' 5wt. Have to agree with Mt405 about the Allen line in 6 weight for your rod, for the same reasons
If Justin hasn't sent the reel (also a a good choice) yet, ask him to add backing and the 6 wt line.
The casting club a real asset for you. Am sure you will meet members who are very familiar with the IMX, and willing to help you.
Good luck to you.