About a year ago I replaced the OEM bulbs in the cargo area lights for my RX350 with Polarg M-16 T8 small dome lights. Apparently they ran a little hotter than I expected and melted through the assembly (see pic). I'm now replacing the bulbs with LEDs which run much cooler. But I'd also like to replace the assembly as well (I need two of them). The dealer is quoting me $50 a piece Does anyone know a good parts place online where I might be able to find these cheaper?

thanks in advance