It would require training and be a pain to use. This MagnaFlux should get the job done at a much cheaper cost.
As for donations, I have been wanting to buy a new GPS and am about ready for a new set of tires too. While we are at it, my wife wants a hot tub in the back yard, and I heard Pontiac is coming out with a new 500hp Trans Am. I am about due for an upgrade.
Used some of this type product back when I was doing weld inspections on vertical turbine pumps. It works great, is easy to use, and certainly gave good results. Usually saved us from having to have the stuff xrayed and was cheaper and much more portable.
Good luck and keep up the good work. Don't let the naysayers get you down.