Upgrading the steering wheel and cruise.

Hi,

Hoping for some advise/experience. 

I've had a troll through and think I know what's what with the cruise control but not sure on steering wheel controls. 

I've got a 58plate vrs diesel. Currently she does have cruise control or steering wheel control. She has a newer version of a factory fit cd changing stereo but Bluetooth module isn't there. My overall plan is to fit a Android head unit with camera etc which I'm fairly confident on. What would like to know is can I fit a steering wheel with controls straight in place. Doesn't need to be fancy and from what I can see MK2 did have steering wheels with controls so I'm guessing some scrappies must have them kicking about. 

I assume if I have the correct module? I don't know if I do it how to tell that it would still need coding? Anyone around Peterborough able to do this?

Any help or advise is greatly appreciated. Also I don't want to be spending a lot as she's a £1500-£2000 car at the end of the day. Plan on running her for 2-3 years though so would like some of the creature comforts

thanks,

stu