Mike, I'd suggest you to read to opening post again and hope you'd realise setting up mods on a server for a day a week would be insane.
And Superman, if you want to arrange that kind of activities, you really don't need to set up a time for that, the 1.7 server is always there and you can always set up a free server for that stuff =) And if the 1.6 server is empty, why not there as well.
Cheers