Looking for 10' 3-wt IMX blank or rod.

While swatting a mosquito this past summer I accidently broke the tip section of my custom-made 10-foot, 3-weight, 2-piece IMX fly rod. I'm in the process of making a repair but since this rod was one of my favorites I'm thinking I'd also like to have a backup just in case the repair doesn't hold or it drastically changes the action.

Does anyone know of a retailer or someone else who might still have one of these IMX blanks in stock? How about a production rod built on one of these blanks which I can strip down and rebuild? Lastly, can anyone familiar with rod actions recommend a blank having similar stiffness in today's product lines? I realize that the current trend is towards multi-piece rods and anticipate that in any replacement I build.