South-isn't there a Western Han Expressway to Ankang Hanzhong? The toll seems to be 80 yuan. I just opened it once, but now I don't know. However, you can go to Zhouzhi on the way (the toll 100 is enough), provided that you don't go to the cave.

West-Baoji is so close to Xi 'an, the round-trip gas money+travel expenses is 300, and other expenses are within your own budget.

To the east-this side of Weinan City, you can go around Shaohua Mountain in hua county, and charge 35 in hua county and 20 in Weinan West (city). Tickets for Shaohua Mountain+70 yuan. Eat, drink and consume your own budget.

Secondly, you can go to Tongguan in the easternmost part, where there are scenic spots, and then you can stop at lingbao city in Sanmenxia City and connect with Tongguan. Lingbao seems to be well built, with a drift of more than 200 kilometers.

You still have to go there.