If you go for a climbing rope, be aware there are two general flavors. Dynamic ropes stretch when a load is applied, the idea is the rope acts to absorb fall forces. Static rope does stretch, but NOTHING like a dynamic rope. 1-2% vs. 10-15%. You will want a static rope for what you're doing. Petzl makes a huge range of static ropes.
If you're all about the destination, take a fucking flight.