It is a painful swap, be prepared for that. I'm still working on mine 6 months later. I didn't want to make the slits on the ends like in the pictures so I took out all the inner particle board on the ends squeezed the dash to the appropriate size then fiber glassed the insides. Then I used a heat gun to shrink the dash vinyl down. Other wise there is no way to get it perfect.
Right now I'm in the process of fabricating a custom kneebar so I can mount the kneebar pads. Without the pads the fuse panel hangs below the dash which is ghetto to me.
Another consideration is the dash does not fit well around the steering column. You will have to cut off the factor steering column mounts and fab your own. Additionally, The hole in the dash is way too big for the rabbit steering column, I'm going to cut off my stock steering column and merge it with the corrado one so I can run the corrado steering column plastic and stalks.
I don't recommend the Corrado dash swap unless you're very patient. Most of them look good at 10' away but if you want it too look factory be aware you've got your work cut out for you. I have at least 100-150 hours in mine and it's no where near done.