However you came up with those ears, you did very well.
I'd value a set of NOS ears at $400+. Yours look as good, or maybe better than NOS, judging by the picture.
I've been working on a setup to be able to disassemble HL ears, and straighten the parts. Then reassemble them...ready for metal finish and rechrome. It might be interesting if I can ever get it together. Maybe I'll start with a set of painted 77up type. If they can be made to look good with paint, then go all out with a set of K3 and get them rechromed.
The scariest part for me is the metal finish. Will probably be a buttload of work to get them smooth, and nice enough for chrome. Then the question is, will the reward be worth the work??
$400 might not cut it.