Minimum daily wage in Thailand is THB 300 (2016) so THB 1000 is very very generous. THB 500 for the guide (if guide is competent/did a great work/has met your expectations) would IMO be appropriate and 200 THB for the driver; both persons would be very happy for such tips.
Last edited by SK AAR; May 17, 2017 at 7:11 am