Dance mash-up mix CD

I'm after a dance mash-up mix. The whole mix will need to be 75 - 80 min long (enough for a full CD) and to be sent as mp3 files - both as a larger file with the album wrap, and all smaller files with the individual tracks. This works out to be around 3:30 - 4:30 minutes / track, although favoring longer tracks where possible. As this is a mash-up mix, I'm looking for around 2 - 3 tracks to be overlaid for any 1 track and to mix smoothly in the next track. I'm looking for it opening with around 35 - 40 mins of mash-up before going into a short, more chilled section somewhere in the middle, picking up again for a few more songs and then finishing with a mighty 3 song mash-up to see the CD in style. I've written a track-list and will require all of the tracks to be featured on the CD, as well as vocals for non-instrumental tracks.