Have you considered repairing and/or restoring rather than replacing? I used to own a pair of matching cars. After 15 years of owning/driving, both cars had some really worn-out leather seating. The rears were nearly perfect, but the fronts were bad. Missing color in the creases and cracks, abrasions, and even several small wear holes on the bolsters. One seat even had a splotch of metallic pearl white paint on it from a previous accident repair. The cost for new OEM seat covers (the least expensive of the lot) was $500 per seat on dealer clearance, and that wasn't including labor. I decided to restore the seats, so purchased a complete repair & restoration kit. I purchased the Colourlock system (not an endorsement). It came with everything needed from prep and fillers to final color and coating. I spent a little over 6 hours per seat, but once completed they looked nearly new. Nearly, but not exactly. I was quite happy with the completed restoration, and happier I saved a little over $1k per car by going with a restoration. The seats matched the overall state of the car so it didn't appear like I tried to turn a sow's ear into a silk purse. The seats just looked like they were very well cared for, and maintained like the mechanicals. The kit cost me a little over $85 and my time on a rainy weekend. Most of all, I didn't pay Gucci prices for a knock-off Walmart bag, but the resale value of the cars when I finally sold them paid off. Their respective new owners made specific note of the seating condition, and were impressed at how good they still looked for 18+ year old cars. You can find plenty of videos on YouTube for leather seating repair kits to determine if restoration if a good choice for you and your car. For lighting, you might want to look at Turner Motorsports. I purchase plenty of BMW OEM and aftermarket parts from them. Good quality, and decent pricing. Otherwise, look at a retrofit conversion kit. TRS (The Retrofit Source) carries quality kits I've used on other cars. Best of luck to you.

Excellent find. Good diagnosis, but sorry it had to be new parts. Nothing on these cars are inexpensive.

It sounds like the window needs to be reset. Not coming back up is indicative of the anti-trap function incorrectly set. There's a lot of YouTube videos and other online reset instructions. I performed a reset on my F06, and imagine yours will be similar. Not exact, but similar.

While new to the world of BMWs, I'm quite accustomed to turbo rebuilds for other vehicle brands. A great shop right over the river in Wisconsin is Midwest Turbo Connection. I typically rebuild my own turbos as I want to know precisely the parts put into them. What I'm unable to do is the balancing to the rotating assembly, so I first went there to have a balance performed. The shop is incredibly clean and organized. That's indicative of their services. I would recommend you give them a call and ask for pricing. If you really want to add longevity to the rebuild, and some faster spool times, replace the standard bearings with full ceramics. A bit more pricey, but well worth it, especially on cars such as these BMWs.