The point lagering, is to clear up any esters and such in the final beer. That's why we lager to begin with, to clean up the beer.
I've been doing a lot of research into that style lately for my Sri Lankin Stout. Since I was doing a rough clone of Lion's which is brewed as an ale as opposed to Dragon which is brewed wit lager yeast. If I were going to brew it with lager yeast I would brew it like I would ANY lager, and that is much colder than you are planning. In the cooler range of whatever lager yeast you are planning to use, then lager like normal. I don't know why you'd want to brew it in the 60's for.
Like my snazzy new avatar? Get Sons of Zymurgy swag, here,
and brew with the best.
Revvy's one of the cool reverends. He has a Harley and a t-shirt that says on the back "If you can read this, the bitch was Raptured. - Madman
I gotta tell ya, just between us girls, that Revvy is HOT. Very tall, gorgeous grey hair and a terrific smile. He's very good looking in person, with a charismatic personality... he drives like a ****ing maniac! - YooperBrew