well i am here on X visa which is student visa. i am also a govt of pak employee so for me np getting visa. but u can also get visa easily for 3 months. u just have to have complete docs etc and if u have sum more visas on ur passport all the better. but chinese visa no issue. i dont remember the fee sorry!!!!!
travelling is very well orgnized here. there is a huge network of trains and roads which is well managed. only biiiig problem is language. u shud learn sum basic words.
accomodation is in youth hostels which r great. lots of foreign and local travellers come. its great company.
for hostels c www.hostelworld.com
what is ur iteneray. what is ur exact plan.