So to have the set up you're wanting you'll want a set of highline clocks, stalks with MFD controls or MFSW. Do you have cruise control? Might be worth installing that too whilst you have that area apart (1 wire needs to be installed to the ebox under the battery in the engine bay too but you'll be mostly there already with the steering wheel off etc)
Your best bet would be to have this done via someone with genuine ODIS as mentioned by Dav-Tec. Where are you based?
FYI: You can have used clocks installed but check with the company you're using for the immobiliser work as some have restrictions when installing used parts, I know I do.
ODIS doesn't do mileage correction but again, the company you use may be able to do this too if they have the relevant tools.