seeking advice here. Recently picked up a "good deal." My first 100 series. Loved these trucks and they've finally gotten to affordability. Noticed the gas tank cover rot and some corrosion around bolts and components in engine bay. Tonight I took a closer look at shock towers and welds. Penetration looks pretty severe but wanted to see what you all thought I should do. If I can hit these with a dreml and POR 15 can these be saved?