I was looking into this myself and came up with the following ;
The BCD is 104 so any bash would fit e13 etc.
But instead of trying to mimic the look of the triple with a bash as above fit any bash then fit
These
Not cheap at around £50 for a set of 4 original Shimano I found some for sale on eBay.
Or KNC do some looky likey ones
These
Around £15 available in a choice of colours
Which will give it the the look of the 980 double like
This
Hope that helps 🙂