It's just a standard MFSW retrofit so don't worry about it fitting, it will and you'll get the controls to work.
To get the buttons to work you'll need a highline steering control module (unlikely you have one now) and definitely a new airbag loom to get the buttons to work, then you need someone to do coding in VCDS.
I take it you have a 3 spoke steering wheel now? Just reuse your airbag and cover.