You really need to speak to Yunda, as it sounds like you are asking for something that has not been done before. Therefore I doubt if anyone on this site will have the specific experience you want people to share.
Tell Yunda you WILL sign up. Ask them the name and contact details of the teacher, and the person organising this.
If they use the word 'difficult', it most probably won't happen. Don't accept a promise as evidence that it will happen. This is China, promises mean nothing, plausible deniability is everything, taking responsibility is unheard of.
There are face issues. People will have difficulty saying 'we can't', and will never admit, "I don't know".
You must be persistent with Chinese and re-ask the questions until you get a solid answer that is not in the least bit vague. Much of the time you will get an answer to a question you did not ask, that usually means "I don't know, but find it impossible to say this due to face issues, please ask me a question that I know the answer to".
Kunming residents contend with high gravesite prices
发布者Antinatalist
I guess that is what you call Buddhism with a Chinese face.
Getting away: Changchong Mountain
发布者Blobbles, if there are not trees, you may be able to make out farmers routes on Google Earth. You can sometimes.
If you have personal GPS you could also check progress by pre-defining lat-long from Google Earth before you leave home and write them on a print out.
Just an idea.