How much to fix radiator in a 2000 pontiac Montana van?

I would only have it repaired if a tank had a leak and it could be welded, (some can't nowadays because they have plastic tanks) which is cheap. Recoring one is almost the same as a new one, and they are never as thermally efficient. Since you can buy a new one around 200.00 and drop it in yourself that's what I would do.