Anyone Have a Cheap Inversion Table You Aren't Using?

Some of you may remember the inversion tables that health nuts used to use years ago. It's a board that you strap yourself on. It's on a pivotal stand and you can flip yourself upside down and hang there for a while. People used to use them for back pain and increased blood flow, etc. The look like this:

http://www.megafitness.com/inversion-tables.html?engine=overture&keyword=inversion%20tables

I had some large kidney stones that caused some problems for me and I was finally able to have lithotripsy in Oct. to bust them up. No I've got to pass all the fragments. A few are in a back pocket of my kidney and I must do what the doc refers to as the "possum treatment". The trick is to get inverted enough that the kidney stones I have will fall out of the back pocket of my kidney and fall forward where they can be flushed out. If I don't get the stone fragments out, they could grow and become another painful problem requiring another lithotripsy treatment, which is also painful.

So I need an inversion table. I thought somebody here might have one that they no longer use and might be willing to sell and ship it to me? I've found them on Ebay for $150 (which includes shipping), but I can't afford it, and I really don't wanna spend a lot of money on something I'll only use a couple of months--just until the stones fall.

I am looking to buy one at a reasonable price and will probably sell it when I'm done with it, unless I find it useful for other health reasons. Have any of you seen one? I'm thinking that one could be shipped by Fed X ground for about $20 or $25. I've seen them at yard sales for about $25--when I didn't need one.

I've tried everything I can think of to get the same results, but I'm a pretty hefty gal, so standing on my head or hanging from my knees on the monkey bars is out. This seems to be the best solution.

BC