Here is an Ebay auction for a used Hipo counterweight and sprocket by Ebay member "shelbym350" with a starting bid of $150.00:
I have for sale an original Ford 289 HIPO crankshaft gear and hatchet. Excellent condition.
https://www.ebay.com/itm/Ford-…id=p2047675.c100005.m1851
-Fred-
This used Hipo counterweight and sprocket received no bids by April 5, 2019 and therefore did NOT sell.
-Fred-
This used Hipo counterweight and sprocket are back on Ebay again with no changes:
https://www.ebay.com/itm/Ford-289-H…7kAAOSwKc1cmCWq
-Fred-