Unfortunately, "Good" and "Reasonable" are self-cancelling adjectives...
If dies are any good, they are not reasonable (i.e: CHEAP) If they are reasonalbly priced... They are likely not any good.
One of the downsides to building an exoticly chambered rifle... Is that one must "Bite the Bullet" for the dies...
That said, however, one
CAN luck onto a set once in a while. In all my travels, out-of-the-way guns shops, Gun Shows, ebay, etc... I have seen only one set. (And, of course, I bought them...) Like my friend,
muledeer once stated..." It's a lot easier to reach up on the shelf for a set of dies when I want to build something different, then locate them after the fact." Sorry, I'm not much help....
GH