I saw this beast on carsales a couple weeks ago. Good work!
You can get the tail lights from toby in UK because the american version would have different coloured blinkers and toby is well priced.
http://www.bmminiparts.com/
Prob easiest to email him with your VIN.
I think you need
7251958
7251957
7252780
7252779
Plus 1 set of the adapter cables which you'd have to search part number.
Or boys at BMR have them
http://bmrautowerkes.com.au/products...lcitaillights/
You'll then need to get "bulb check" disabled for tailights which can be done with any workshop that use autologic or BMW software.