My mother and I are currently living in Chiang Mai. Our 30-day tourist visa extension will expire on April 12th. This is our first time entering Thailand in 7 years. We are seeking a border run or a new tourist visa. We are Chinese nationals. The Thai embassy in Vientiane, which is relatively easy to obtain a tourist visa from, is fully booked until April 25th. The plan is to fly there directly, which costs less than $100 per person, stay for 3-4 days, then enter Udon Thani by land and fly back to Chiang Mai, which is also less than $100 per person. However, we don't want to wait in Vientiane for as long as 15 days (visa processing takes 2 working days). Other embassies seem to be farther away, and it's unclear if they are similar. We have considered going to Chiang Khong and Huay Xai border for a border run, but my mother gets car sick and is almost 70 years old, so she may not be able to endure the 5.5-hour car ride. Are there any other border run options or ways to obtain a new visa with a price relatively close to or not exceeding $120 per person that we can consider?