Gotoh that you can get from LMI or Schaller that you can get from Stewart MacDonald are both good and will be under $60.00.
Supposedly Smallman ships his guitars with Schallers as standard with everything else an upcharge.
As far as a plan, I would start with Hauser as it is closer to Torres which is the foundation for all mocern classical guitars. Before trying a more exotic bracing pattern such as a kasha, it is usually best to start with a fan braced. Hauser like Torres tends to be a smaller plantilla (outline) than a larger style like a Ramirez and is also probably the best place to start.
You will find that building a classical is quite different than a steel string. The dimensions and thicknesses of everything but the width of the neck
are smaller on a classical because of the lower string tension. Having said that I would still be careful not to take the redwood top too thin as redwood has a tendency to split.
Good Luck...you may find building classicals so seductive that you may not want to go back to building steel strings. I have built a bit of everything but now build only classical (and flamenco).
