If even feasible, what minimum type/size cable reqd with trolly attached that would have maximum 1000 lb load suspended from it, that would be pulled up, from atop, by second separate free line for the following location; 1,000 foot elevation change to where base anchor point was, horizontally, 1,800 feet distant, looking straight down over it? Before cable sag and stretch is taken into account, the length of cable appears to need to be about 2,060 feet long. Also, what minimum strength pull rope would be required for 1000 lbs, if trolley was typical, friction-wise? Also, any clue to what minimum size motor or engine would likely be reqd on drum to pull 1000 lbs via that free line? Thank you, in advance, for any insights.