For the day of the class, I would invest in an inexpensive pair of cycling shorts with padding, and also gloves. Everything else could wait. I think you'll be amazed at the difference when you get onto a new road bike! It will handle much differently than your Raleigh which is an old-style comfort bike. You'll zip right along!

Sorry about your separation. But, last night my DH stated dramatically that cycling is the best psychotherapy on earth!