I want to apply a black chip paint or protection to the lower body panels. I will apply using a spray gun (not rattle cans). Can anyone recommend a product and a few details about it? TIA

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1998 4wd XLT 3.0 5 speed
8.8 4.10 LS axle with disk brakes/ 4.10 front diff
constant front halfshafts
31.5 x 15 Khumo tires
Odyssey start battery / 125 amp deep cycle batery
Dometic 1.3 cf refrigerator