Well, in our services we will provide you with Duffle bags, Down jackets, Sleeping bags during the trip (need to return back after the trip) but not trekking poles. Most of the things (trekking gars) you can buy or hire in Kathmandu at a reasonable price. For pairs of trekking poles cost starts 8 USD to above depend on the quality. I am glad to assist you to find those. Hiking poles will be best for the descending trail.