[Spud Eating Buccos]

First off, sorry if this has been posted somewhere already. I tired to do a search, but wasn't even really sure how to word the search.

I haven't done many historical leagues in my past, so they are kind of a new creature to me.

Here's what I want to do and want to see if it's possible:

I'm a tortured Pirates fan, have been since the early 80's. I want to start my league in 1980, but I want to keep the leagues static, meaning, I want to keep the rosters the same as they were IRL, no trading among teams unless it really happened, no movement of FA unless it really happened. I want to keep it like this until '93, when they actually had a good team for 3 years then they lost everything again. In '93, I'd like to be able to be able to keep the team together and allow the AI to control the other teams as it seems fit.

Is this possible? If so, how do I go about doing it?

Thanks