If worst comes to worst and you can only find clear ones, you can hit them with a few coats of translucent yellow. You can make your own translucent yellow by mixing a little yellow with a lot of compatible clear and darken to taste with each extra coat applied. I've seen this trick used on the inner set of stock quad headlights - popular in the late '60s early '70s.
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"If I could get back all the money I've ever spent on cars...I'd spend it ALL on cars !!!