Based on your requirements, here are some boy names in Qiong dialect that may be suitable:
阿TU (ā tǔ) - The word "earth" expresses the meaning of rural area, which is suitable for a country boy. The rustic boy.
Afan (ā fán) - "Fan" means "native" in Qiong dialect. This name is a very appropriate choice.
ALian (ā lián) - This name contains the meaning of "native" and is very common in Hainan.
Anong (ā nóng) - The word "Nong" implies rural life and culture, suitable for a rustic boy.
Axin (ā xīn) - The word "xin" means new life and new opportunities, but it conflicts with "native". However, it also means "earth" in Qiong dialect, so it is understandable. For "New Native".
I hope these names can provide you with some reference and inspiration.