mine also has around 30-40 additional downloads, most of them being single buildings or other scenery objects plus one big asset pack (or better to say another freeware route I used as such) will be required. I'm planning on giving out an asset pack together with the route so that people won't have to download all the single items but just one big file. At least for those packages which I am allowed to be redistributing, luckily most of them. And even if users already have some of the objects it is the best way to provide the route in one piece.
One reason for needing so much downloads is the lack of german objects in default content btw, not just because I wanted to have all that stuff
