This is a good idea and people have used similar avenue albeit through someone they know personally. I had thought about similar idea. However, one challenge that I see in this regard, although you business is very new, is the safety or guarantee of item/s shipped as well as safety of a person taking the item and/or receiver.

For this, what you can do is open a local office in Kathmandu and other popular places like Pokhara, Chitwan, etc. where Nepali receivers can collect their item/s rather than people going to meet like if you are buying off of Hamrobazar.com. This entails that you hire local employees in Nepal and separate expenses for offices. If you do business in volume then that is not an issue.

I hope you get my point.