Vader Solutions has a pretty solid reputation. I'll be dropping my car off to them for a turbo and fuel system install as soon as they get back to me with a price estimate. I did my coilovers myself but I wouldn't hesitate to have Vader do it. Then get it aligned 20 minutes away at Forza Alignment.
https://www.supramkv.com/threads/blackvue-dr900s-2ch-install-diy.4921/
The above writeup is fantastic and covers battery install. I'm running a Viofo 4K dual dashcam on the Blackvue battery.
I used the detailed install linked above to wire in the dashcam. Originally the BlackVue but swapped out to a Viofo 4K unit because the BlackVue sucked. Still running the BlackVue battery pack though. I mounted my radar detector to the dash so it’s not blocking my view from the driver seat.
I'm glad I found this post. I've been having a random intermittent rattle or click in the front end when going up ramps or driveways at an angle. This is going on my check list for next time I'm under the car.