It's hard to say who's reputable when you're buying off of eBay. That's an unfortunate downside that seems to balance the variety you can find over there. I suppose if I'm going to be discussing this FR peanut I should also mention that the main blade is ground poorly such that the edge curves a bit towards the tip while the spine is good and straight.
Like I said, if you open the blades and display it in a case it's absolutely beautiful. I wonder if these knives aren't made to be collected and displayed rather than used?
Anyway, if you're buying a slipjoint online see if you can have them hand pick one for you and stress what you want (good springs, nicely matched handle material, etc) and of course make sure you can return it if you're not happy.
Jon