You can send it Works have them do a heart transplant.  I cant remember the exact cost.  I had it done about 6-7 years ago.  And i think the base price was $180?  Just a guess.

I know it can cost more depending on the shape of your shock and maybe an option or 2.

I did it with my 500 rear shock.  Pretty happy with it.

Heart transplant is basically where they put all their internals into your stock shock.