Peter PJZ has a TDC rocker cover for sale at 100usd or 93aud
plus postage or 40-50usd or 34-43usd.

Its the one at the top the bottom one has sold.
Just has the breather, needs oil filler put in.
Doesnt have the oil squirters as in the pic thats
the sold one but gives and indication of insides.
Well made rockers and a good base for a custom
flat flip cover for easy access and your design.

Its the one at the top, they are a sinch taller by design
also to accomodate the aftermarket goodies you can get.