I've coded a few things on 3 different cars, but not what you r looking to do. I do have the software and hardware set up. Could meet up and let you borrow it to take a whack at it yourself.
'08 Alpine white E92 M3 with DTC--Sold
'12 Alpine white E92 335 Xdrive with slush box
'07 Summit white Chevy 2500 HD Duramax/Allison
'12 Alpine white Z4 35is via EuroDelivery June 4th