I've just fitted the Cruise for T5 without multifunction dash.
You have to be careful when releasing the airbag clips, I managed to dislodge one side of a clip which would not release and took me 2 hours to find a way round it using a mirror to see the back of the steering wheel.
Basic wiring is easy peasy as the instructions are good. The main fuse box is under the Battery and this was the hardest wire to locate as there are a series of two sided connectors mounted vertically in a plastic rack and guess what, the one little wire you need to plug in is at the bottom. All wiring is tight and took me a long time to push wires out the way, pull up the rack and locate, undo clip, release locking mechanism, insert wire, lock, re-insert rack, put all wiring back. You're reaching down into a tight space as well.
I have a lot of tools and consider myself pretty handy at this kind of thing, still needed to borrow a spline that fit the steering wheel. Best part of a day to fit. So ask yourself, do you feel lucky punk!?
I would consider paying to have it done if I had more money. Oh and the kit is weighing in at £72.5 + VAT these days and another £14 for VagCom lead or donation to a person with one to turn it on.