OK, I'll bite, what's so special about your guide rod? I'm an old machinist, I'm surprised a good lathe man can't make you one....guess I'll have to take a look at this 'impossible' guide rod and see what's 'impossible' about it....
But good luck in your search, after I look at what you have if I can find anything I'll let you know...
PS - I'm assuming Taurus can't help you out....right?
2nd PS - Two of my CZ's had plastic guide rods. They worked fine, better than fine. Perfect. But...I wanted stainless steel guide rods. Had to have steel. I buy the guide rods, then I find out, CZ has plastic guide rods because of the flat springs they use. If I use steel guide rods with the flat wire springs, the springs self destruct. So...I had to re-spring the gun with round wire springs. That took some tinkering and a fair amount of range time to get the right stiffness spring paired with the SS guide rod, where the gun wouldn't fail to feed reliably. The point is, it took a fair amount of work...to fix a gun...that wasn't broke to begin with....