I know it's not what you want to hear, but I'd stick with sportcarleds.com for the twist lock LED bulbs as the eBay bulbs are of varying quality. I bought some of the cheap ones for my daily driver last year and they started acting up after only a couple hours of use. The bulbs from sportcarleds have been in my 986 for years with no issues.
Same for the surface mount diodes for the switches and climate control. Order from a reputable electronics supplier like mouser.com. There is a link in one of my threads...