Okay....you might want to date code those tires; 10 years is usually the max as blow outs will cause huge amounts of damage. Very glad you made it home in one piece but that's about how far I would push your luck.
The Isuzu is amazing really....add some new fuel and away she'll go, even after years of immobility. You couldn't get away with that with the 454.
However that being said I would be swapping in some new metric fan belts; (don't get the 1/2" Gates belts, you want the 17mm metric belts.), greasing up the water pump and most likely inspecting and replacing the lower ball joints along with lubricating all grease points (don't forget your carrier bearing and U-joints).
Don't forget to change the oil and remember to put the oil filter cartridge the same way you take it out; if you turn it upside down it will shut off oil to the engine and you'll blow a turbo.
That's just to start......but she looks pretty good; and she even has hydraulic levellers, WOW.
Cheers
Tony