Restoring Commando Valve covers

here are some plastic plug wire retainers from I guy I have bought from on ebay:
http://cgi.ebay.com/ebaymotors/Mopar-426-Hemi-440-383-273-Ignition-Wire-Insulators-_W0QQcmdZViewItemQQhashZitem5d29b8d3feQQitemZ400131937278QQptZMotorsQ5fCarQ5fTruckQ5fPartsQ5fAccessories#ht_500wt_945