I learned that a contacted cheyou was riding in Lhasa and then to the Everest Base Camp. I suddenly came up with a thought, and I also wanted to go.
If you arrive in Lhasa successfully, you may be able to go from Lhasa to Everest Base Camp in 6 days.
Maybe it's okay ....
Budget:
Guangzhou-Chengdu: 2 days. K192, hard sleeper, 431 yuan. Http://search.huochepiao.com/chaxun/resultc.asp? Txtcheci = k192/k193
Chengdu-Lhasa: 26 days. 1300 yuan.
Lhasa: 1-2 days. 200 yuan.
Lhasa-Everest Base Camp: 6 days. 300 yuan. 65 yuan for tickets.
Everest Base Camp-Lhasa: 1-2 days. Car, 180 yuan.
Lhasa-Guangzhou: 3 days. T263, hard sleeper, 730 yuan. Http://search.huochepiao.com/chaxun/resultc.asp? Txtcheci = t263/t266
Lhasa-Guangzhou: If you fly, the full price is 2500 yuan, 2000 off. 3 hours.
So,
It takes at least 41 days to take a train to return to Guangzhou, and at least 3500 yuan is required.
If you return to Guangzhou by plane, there will be 2 or 3 days of buffering time, at least 5500 yuan.
So you can find some sponsors :)