That's fair, though there is an argument to have then open early so that they can have a more "WSX-y" roster. Like how Fleisch has ECW active in January 1992 in their mod, despite them opening in February.
That would also allow you to give them a deal with MTV from the start, since there's no way you get that MTV broadcast deal by normal means when you're starting off on their level.
This is entirely just a suggestion tho. It's your mod.