Got a new 16 6.0Rado that I drove home from Dave Smith motors and so far it's just sitting in the garage 1023 miles. I want to have a pro get in the inner fender wells and do some serious rust proofing. Any ideas of what would be the best product to use? Based on all of the rusted out 10 year old trucks I see I'm wondering if it's even accessible. Por 15?