I had my Van sandblasted up here in Cairns, wasn't cheap ($1800) but I had inside and out done with all doors etc.
Can say they did an excellent job included was 2 pac primer. No rippling from heat, etc and that is probably the main thing you have to watch with sandblasting.
Still getting the blast out of the car though 6 months later.
Got rid of all the rust with out the hard work... now I just have to fix it.
Have some photo's in the photo section of the before and after if you want a look, though the photo's probably don't show as much as you need.
Hope this helps
Regards
Jason