Sorry, no build thread.
Trust me you don't want to go down this road, swapping oem LED projectors into a halogen housing is the most difficult retrofit by far. You have to create a custom mounting solution, work on getting rotation perfect, allow for adjustments, fit the ballasts and heat-sink inside the housing etc etc...
There is about 60 hours of labour in these lol and they still aren't "perfect". I will be selling them soon though, so if you want to pick up a project after I retro my euros...