Ok, it sounds like you have at least some idea of what you're getting into. That's good.

If you're not expecting rain to be a major part of the trip, you can always just use sleeping bag, sleeping pad and ground cloth. If it does happen to rain when you're out, just wrap yourself up in the tarp and you'll stay dry enough in a brief rainstorm. Or you can even get fancy and set it up as an A-frame over a ridge line.

If I were you, I'd ditch the Bota bag, all the knives (swiss army included), and the radio. You can also leave the music player and batteries to save a little more weight. I'd try to get it down below 25 pounds if I were you. Most any bike can handle an extra 20 pounds without trouble, but more than that and it starts to have an effect on handling. You don't need a low gear of 22 gear inches to haul a light load up a hill.

Personal preference is to avoid the pack, I can't stand it myself, but if it works for you.

With a load like that, it's definitely doable to tour fixed over moderate terrain, but it will be a challenge. As long as you don't mind walking some hills, and likely having lower mileage than if you toured with gears.