Just pick the team as you would normally. I don't think picking guns and rookies necessarily means you'd finish any stronger than a mid priced team, it's all about who you actually pick.
Who you upgrade to during the season is usually where premierships are won and lost.
Cheers for the advice Mr Craig. Yeah, just gotta try and produce the best cash cows and milk em at the right time I spose. Fantasy is different but with those extra trades for the year. Which means it can be possible to end up with even stronger team as opposed to rdt and SC!