I would use some MMO in the fuel tank, cylinders, oil then turn it over a few times and add more MMO in the cyiinders and then let it sit over night.
Pull the fuel line at the filter and use a jar to see what the fuel looks like if there is any, if none is in it add fresh fuel with about 4 oz of MMO in it. If there is and it's nasty drain the tank, change the filter before you try to start it still with some MMO in the fuel. This will help the injectors out...
Drain the oil with some cheap dino stuff and change the filter with fresh oil and you can add some more MMO in it. If you get it running let it run for a while then I would change the filter and oil again if the other fresh oil look OK.
Flush the Rad, change the tranny and rear-end fluids, check the brakes and maybe flush the fluid with fresh Dot 3 stuff. Lube suspension parts and so on.
Check all Fuel lines for leaks including the injector hoses, check all water lines and vac line. You get the ideal!