How to buy/build my own corne keyboard?

I have been digging up about this corne keyboard,but it always exceeds my budget. My budget is under 8000, and i have already decided the switches(jade blossom from epomaker which is around 1500) and keycaps (around 2600)(so the remaining budget is around 3900),but rest i dont know how and from where to buy(like i am not sure if they will deliver or not)(and also very confused). So please help me on that. As i am also learning programming,i already have a small esp32 microcontroller