PHP (7.4), 93 bytes

fn($s,$e,$m,$w)=>' '.'&|\/'[$s].'
'.' ('[$w].'('.($y='^.oO'[$e]).'v.oO'[$m]."$y)".' )'[$w];

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PHP (7.4), 91 bytes

Generates the output string using a template string and strtr array replacement mode.

fn($s,$e,$m,$w)=>strtr(' 0
3(121)4',['&|\/'[$s],'^.oO'[$e],'v.oO'[$m],' ('[$w],' )'[$w]])

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PHP (7.4), 93 bytes

Generates the output string as it goes on.

fn($s,$e,$m,$w)=>' '.'&|\/'[$s].'
'.' ('[$w].'('.($y='^.oO'[$e]).'v.oO'[$m]."$y)".' )'[$w];

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