A link to the Four Winns parts catalog for the 2000 268 is here:
http://parts.fwdealer.com/Catalog/Categ ... 8V-D00-Z00Click on the "P/L 268V Blank Engine" drop down. The Four Winns and cable manufacturer's part numbers are shown. You can also see pictures of the components by clicking on the camera symbol. The engine cable is 17 feet long (P# 176017) as identified by the last 2 digits of the part number. The shift cable (176018) is 18 feet. The part numbers for the 2000 model are different than my 2002. I am not sure what the difference is, but maybe some internet research might produce some info.
Also, have a look at the throttle quadrant you are looking at compared to the OEM throttle photo. Make sure that your replacement will work.
Hope this helps.