Hi Kevin,firstly welcome to the 'bolt.
Certainly blasting is probably the best option,but at a price.
You also have the logistical problem of getting the chassis to the sand blasters,unless you can find someone who does 'mobile' work.
Then you've got the mess to contend with. dang

I,like Joy,did mine the hard way and have been pleased with the results,it's a dirty job....but someone's got to do it!

1950 Chevy Advance Design 3100 in Scotland
In the Stovebolt Gallery
More pix on Flickr.
I've definately got this truck thing in my blood ... my DNA sequence has torque settings
"Of all the small nations of this earth,perhaps only the ancient Greeks surpass the Scots in their contribution to mankind" Winston Churchill.