Cars been siting for about 3 and half 4 years without being turned over

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My Sti's been sitting for about 3 and a half to 4 years without being turned over don't hate me I got in an accident smashed the radiator, bumper mount, and fans the serpentine belt riped and didn't have the time or money to fix it I need to fix it besides replacing those items I know I'll need to drain gasoline and replace other than that what should I do before cranking over and what problems will I encounter please help I miss her and would appritiate any info thanks