Finding the individual lens might be tough, but plenty of NOS complete lights are on the online auction site.
Standard and LED.
Depends on how much $$ you want to spend.
Some are all plastic and some are aluminum housing with plastic lenses.
Post your needs in the Parts Wanted section if you want that individual lens part.
If it’s been busted for a while, you will probably have corrosion issues inside and it might be better to simply replace the entire assembly.
A cursory check on the popular auction site revealed a few options. Check out these sellers to find what you seek. Beltfed34, wartimefinds and saturnsurplus. I've had great customer relations from the latter. All 3 had a pair for under $50. Some have a make offer option too, might save a buck or two. This is just a pair of complete lenses, not an entire light.
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