Well, it is much better than I anticipated. Only the inside rail on the passenger side has holes in it. About a 2 foot section right beside the muffler. Outer rail and bottom rail is ok. Entire driver side is fine. Welder was recommended by my Parts Mgr at Toyota (great Christian brother). Welder showed me about 10 pics of some he had done. HIs work looked clean and neat. His experience makes me feel much better. He said it most often this same spot on the Gen 3's. Right beside the muffler. He said mine wasn't so bad. He recommended I not buy a kit as that metal is usually thinner than what he would use in his repair. He showed me He said to clean out the trash inside the frame and it would be about a 6 foot weld. Would keep the 4Runner 2 days. I'll post some pics but it is hard to see with the muffler in the way. Approx $1000.
But...he said he doesn't mess with exhaust. That's on me to remove it. I live 30 miles away. I can remove the exhaust but I may not get the thrill I did when I dropped the exhaust on my '69 Mustang at 18 years of age. LOL At least I can turn off my hearing aids......