What is the most reasonable way to go to Tibet by train from Shandong?

Train Departure-Arrival Running Time Full Mileage Reference Fare

G 182 Details Jinan West-Beijing South 08: 10-09:48 (same day) 1 hour 38 minutes 406 km hard seat 197 yuan; Soft seat 233 yuan

T27 Details Beijing West-Lhasa 20:09- 16:00 (the third day) 43 hours 5 1 min 3753 km hard sleeper 609 yuan, middle berth 63 1 yuan, lower berth 652 yuan; Soft sleeper 964 yuan, soft sleeper 1006 yuan; Hard seat 363 yuan

Details of D232 Jinan West-Beijing South 07: 10-09:20 (the same day) 2 hours 10 minutes 406 kilometers first class 15 1 Yuan; Second class 126 yuan

T27 Details Beijing West-Lhasa 20:09- 16:00 (the third day) 43 hours 5 1 min 3753 km hard sleeper 609 yuan, middle berth 63 1 yuan, lower berth 652 yuan; Soft sleeper 964 yuan, soft sleeper 1006 yuan; Hard seat 363 yuan

Details of D234 Jinan West-Beijing South 07:30-09:4 1 (on the same day) 2 hours1minute 406 km first class 15 1 yuan; Second class 126 yuan

T27 Details Beijing West-Lhasa 20:09- 16:00 (the third day) 43 hours 5 1 min 3753 km hard sleeper 609 yuan, middle berth 63 1 yuan, lower berth 652 yuan; Soft sleeper 964 yuan, soft sleeper 1006 yuan; Hard seat 363 yuan

Details of D236 Jinan West-Beijing South 07:55- 10: 12 (the same day) 2 hours 17 minutes 406 kilometers first class 15 1 yuan; Second class 126 yuan

T27 Details Beijing West-Lhasa 20:09- 16:00 (the third day) 43 hours 5 1 min 3753 km hard sleeper 609 yuan, middle berth 63 1 yuan, lower berth 652 yuan; Soft sleeper 964 yuan, soft sleeper 1006 yuan; Hard seat 363 yuan

Details 1085 Jinan-Lanzhou 09:20-08: 13 (next day) 22 hours and 53 minutes 1855 km hard sleeper 208 yuan, 2 16 yuan, 225 yuan; Soft sleeper 347 yuan and 364 yuan; Hard seat 105 yuan

K9 17 Details Lanzhou-Lhasa12:13-14: 55 (next day) 26 hours and 42 minutes 2188km hard sleeper 4 10 yuan, 423 yuan, 423 yuan. Soft sleeper 642 yuan, 67 1 yuan; Hard seat 242 yuan