Congratulations, you will enjoy the process and build a great rifle.
Off the top of my head, a few chisels, good screw drivers, a large marker pen for inletting black, a sanding block, a large single cut file for the barrel, brass drift, a triangular safe side file...maybe. A machinist vice with padded jaws will work.
As a beginner the most important thing is think about what you are doing as to not cause damage. The metal fits so well it may be tempting to force it onto place. You might be able to do that but removing it again might split out some wood. Jim's kits are pretty much assemble without cutting, very minimal in-letting work needs to be done. Search, "Kibler's Longrifles" on youtube to see Jim's excellent videos. If you put his rifle assembly and finishing videos on a lap top you could follow along in the shop. IF you did that, I think any reasonably "handy" person could do a good job the first time.
One good idea is to case harden the screw heads before you start work. The screws will get buggered up if you take them in and out several times.