Welcome to NWDC!
My 2 cents are that you would be best served in a fundies class to have some experience using a drysuit and fair buoyancy.
I've had people in classes with very few drysuit dives and invariably your experience will be a better one if the learning curve is applied towards building a solid foundation and learning skills taught in a fundamentals class, versus trying to still find your feet in a drysuit.
In my experience, the amount of dives in a drysuit very much depends on a person to person basis and the best is usually to meetup for a dive and a cup of coffee afterwards so we can establish a baseline and plot a path forward.
For starters, you are in EXCELLENT hands with Bob. He is a local PNW legend of an instructor and he will be able to help and guide you towards your ultimate goal.
feel free to ping me with questions and/or meetup for a dive.