Look at using the top red for replacing the lower white. Use a top reflector. Cut the plastic weld with solder iron are wood burning pen. ***emble using super glue. I’ve done five sets of 54 lens and no issues. Back in the day some 54 station wagons had red top an bottom.
https://www.koolrides.com/s/cart Found that site trying to find another company so I can get some for my 54. No idea how good the company is. Maybe others will be able to say. Making me wish I'd went ahead and bought some while mooneyes still carried them