You would have to look at in person to see if its worth fixing or not. The rust may not be that bad, but you would have to get underneath it and poke around. Since this a body on frame truck the condition of the frame is very important because if that rusts through its a parts truck.

I'd also wonder how expensive it is to fix, can you even get floor pans and rear quarters for those things in this country? I have a feeling that body would suck down $5k-$10k to have a good body shop go through it and cut out and re weld metal, paint etc, provided you can get the parts.

IMHO I know G's are rare but its a $5k truck to me, $13k is a ton of money to spend on an old rusty truck with star ship mileage on it, its essentially a hard top Wrangler with a MB star stuck on it, and you can get a lot of Wrangler for $13k.

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1999 SL500
1969 280SE
2023 Ram 1500
2007 Tiara 3200