Youtube channel modifier

I need a software to run on Windows or a linux server. This should be able to change the featured video in a youtube channel. One should be able to load the software with a list of Youtube channels and passwords. One should also be able to load a list of proxies. Please note that the featured video selection in Youtube is handled with a dropbox using a dynamic variable. If it didn't use a dynamic variable, I would already have built this in imacros. Looking to spend less than 100 bucks and wait less than 2 days for this.