This forum has been of a great help for me to plan my trip and I really wanna thanks all the people contributing. There are still 2 questions where I couldn't find an answer.
1. Is the bus ride safer on kathmandu - pokhara or the pokhara - kathmandu direction? One direction must not on the safer side of the road.
2. When leaving bandipur, how to get on a bus direction kathmandu or pokhara? ( people all seem to recommend private car but this is a budget I don't want to spend on transportation) Do the better buses stop at Dumre?
Here below my ideal 9,5-day itinerary for reference. I've put my personal must see on the 7 first days and keep the last 2 days open in case something went wrong with transportation
Day 0 :Land in Kathmandu at 22:00
Day 1: Kathmandu
Day 2: Patan and Bungamati
Day 3: Early flight to Pokhara and immediate start of Poon Hill trek
Day 4: Poon Hill Trek
Day 5: Poon Hill Trek
Day 6: Poon Hill Trek, return to Pokhara
Day 7: Bus to Bandipur ( stop in Dumre and private car or bus to village )
Day 8: Bus to Bakhtapur overnight at bakhtapur
Day 9 (open day) maybe Changu Narayan and Dhulikhel
Day 10 (open day) flight back at 23:20