Ahhhh.....bashers out in force, I see.....
What you call "bashing" some folks call reality.
But if I was bashing something, It certainly wouldn't be the rifle, as much as the logic behind spending more to get less in the name of doing "something different". Good for you that there are enough people out there wanting to pay more to get less that you can make a living from it, I guess.
Using a different approach to meet a specific goal is often a good thing, but when the "something different" is the goal itself, frankly that is kind of a silly reason to do something.
I bet this guy was wanting "something different"
Question:
Which rifle has the most confirmed Sniper kills, in history?
The Mosin Nagant, but I expect this has more to do with raw numbers than anything to do with the rifle itself. Soviets were big believers in military sniping, and fielded more than anyone else by a large margin.
Question:
Which rifle was used by the winner of the Gold Medal in the Olympic Biathlon in Innsbruck?
No doubt an off the shelf 1943 Izhevsk 91/30.
Again, not saying anything negative about the Mosin Nagant, it was cutting edge technology for 1891. It was an excellent rifle for a conscript army of largely uneducated farmers.
It is roughly the equivalent of the VW Beetle. It is rugged, utilitarian, extremely reliable, not that fancy, cheap to produce and completely functional for its intended role. You can try and dress it up, but it is still a Beetle.
Sure, you can bolt a bunch of crap on a Mosin, spend the money for a bent bolt, scope mount, new stock, cut the barrel, install a brake, whatever other crap floats your boat, but it doesn't change the fact that pretty much any modern entry level rifle from Savage/Ruger/Remington/Marlin is going to be a better rifle in every measurable way. Manufacturing technology has come a long way since the WW2 era Soviet Union.
A modern gun will be lighter, more accurate, have a better trigger, be easier to mount optics, and probably shoot a more readily available cartridge than a Mosin.
And since you don't have to bend the bolt, or install a special scope mount, or replace the stock, it will most likely cost less, particularly in the current market.
Not sure what sort of match the OP is interested in shooting with a Mosin and iron sights, but like you mentioned those would usually preclude modifying the rifle.