South Korea Four Rivers Self Supported Bike Tour

Hello, 67 year old male looking for companions in cycling the Four Rivers bike paths in South Korea for 4-5 weeks starting in April of 2026. This includes the cross country route from Incheon to Busan (393 miles), as well as, the Oncheon and Geumgang bike paths (155 miles) and the Seomjingang and Yeongsangang bike paths (175 miles). Flying into and out of Seoul and using buses to get to the non contiguous paths. I have done extended bike tours in the United States and Europe, but have never been to Asia. This is a self supported tour with options to camp and stay in inexpensive lodging. Average 50 miles per day with some days off. I’ve heard that South Korea has modern bike infrastructure along these routes.