But why are you giving up, now that you have everything? Why not try it? You have all the essentials. Just use a free frontend. I know you said centrafuse was the thing, but it does nothing RoadRunner cant do. And RoadRunner is free. If you want easy install SD is only just over a hundred dollars for the light version.
If you have everything, try to get it set up, youll love it and want to keep everything. However if you dont, then sell the stuff, but you are going to lose a lot of money.
Also the buyers here will most likely be from the US and Canada. If you want more european coverage since you said you were in Denmark, try www.digital-car.co.uk