The most daunting part of a retro fit is def. The aiming/aligning process.
Over engineering is a must. Or the vibrations of daily driving will shake everything loose.
Matt and his crew from theretrofitsource.com have been great guys to buy from. Their customer service is second to none. Tonight I'll be aligning the h15 position. I'll post more pics tonight. I have halo's behind the shrouds. I'll also be adding some led blinkers. This should be a pretty neat set-up when I finish.