Donaldmax, let's do a little exercise. I'm serious.

List every part you need and what you'd like to pay for this part:

Frame:
Fork:
Stem:
Headset:
Bars:
Grip tape:
Wheels:
Cranks:
Chainring:
BB:
Cog:
Lockring:
Tires:
Tubes:
Seat post:
Saddle
Pedals:

Please reply.


Also, the "learning by building" is overrated. You can also learn by maintaining a bike.