there should be a really nice small bunwang spot directly to the right of the road if you're looking north. its SE of the word "Road", and it should be north of some tiny hills, south of some rocks and trees, and there should be a set of bushes somewhere in the middle and to the right. Dunno if this helps or not, but its worth a shot I'd say.
If you're concerned about the nuker bots, get a high level to bring a trade run with lightning thieves to your training area
btw, cave > penons > bandit archers > bunwangs imo