Having the will and the financial resources isn't enough. Someone has to know how.
EngelsCoachShop has a YouTube channel and he has posted some very interesting videos of his work. What follows is a compilation video of wheel building. I picked this one because these are huge wheels, built for a heavy borax wagon, and because the whole job is shown in one video. You can watch this and other projects in detail on his channel.
The shop has all the tools and machines. Some new, some very old. They use what works. You might see a century old hand tool one moment and a chainsaw the next. They are building wagons and wheels for antique repairs and reproductions.
If you put me in there and told me to build a wheel, my first attempts would pretty sorry affairs. Even with all the equipment, it is the decades of accumulated knowledge gained while working in a craft that is important.