I would try to turn the engine over by hand first. Us a 1/2" drive ratchet or breaker bar on the crankshaft pulley. If the engine is seized up, you have bigger problems.
Corrosion at connections is probably your next battle. Remove and clean all battery and starter cables. Use a wire brush to clean the posts and ring ends and a battery brush to clean inside the battery terminals.
You may have to remove fuses and clean connections there as well.
S5 WHEEL PACKAGE - FREE SHIPPING
TWO WHEELS W/ST205/75R14 KENDA TIRES $299
TANDEM AXLE PACKAGE W/205/75R14 KENDA TIRES $599
TWO 5 LUG WHEELS W/ST205/75R15 LRD KENDA TIRES $349 S5 W/BLACK INLAY
TWO 6 LUG WHEELS W/ST225/75R15 LRD KENDA TIRES $359 S5 W/BLACK INLAY
$99 LED LIGHT PACKAGE - FREE SHIPPING
REBUILDING HOLLEY MARINE CARBURETORS - $225 DELIVERED
Email - firstname.lastname@example.org