Get your 4,000 pound test rope at McMaster.com . Enter 3825T39 in the search box for the 2 inch variety. It is Fed. Spec. TR 605B quality, so don't fall for any mumbo-jumbo obscure rope terms when evaluating your selections. They have plenty of hardware to rig up a short rope pulling station, or just throw a length of it over a beam in your cellar and start chinning. And they will cut to any length!
'Tis No sense in paying crazy prices for a commodity item. ;)