Gettin' Started on the '77 (aka, Startin' the '77)

[ClassyLilDarlin]

Just brought my '77 Chevy Silverado 4x4 home (it was in storage for 5 years...sigh) and was unable to drain fluids before it got stored. I've already been told by MANY people that was a *bad thing*....but none of 'em seem to have the info I need to correct this unavoidable error. It had a relatively new 350 (10,000 miles), new tranny w/cooler and new HD radiator prior to storage. I refuse to start it up 'til I find out what ALL the correct "do's and don'ts" are...Can y'all help??