That seems to be the standard ebay practice though. If you have an Enfield part, put the word sniper on to it and expect 10 times the return. For instance, the butt sling swivel with the larger opening....while it may have found it's way on to the sniper rifles, in order to allow for the leather sling to fit through a bit easier, it was not exclusive, nor rare. Yet every one that shows on ebay seems to have the "sniper" or "4T" atached to the listing.
Or how about the target swivel, just forward of the magazine? Again, not an overly rare part, they were used on the Cno7s as well, and also found their way on to many DCRA rifles. Are they really worth $35-40?
Oh, and don't forget the buffoon that was selling the Carl G scopes as Enfield scopes for a couple years, and getting outlandish prices.
Lastly, if you have a mk1 sight with the battle aperture broken, just grind it off altogether, and voila, it's now a $40 sniper rear sight.
Only good things about e-bay is that if you wait a while. all your holy grails will show up on there, and secondly, you can get cheap car parts for cheap.