I've got the Euroarms M1861. As a reenactor,I like it to look as correct as possible. I've found that original Springfield parts like the lock assembly,and the triggerguard drop right in (You have to use the original screws,as Euroarms are metric).I was not especially happy with the look of the stock,so I stripped it and restained it. Others in my company with new Euroarms have gotten stocks that look very close to original,though. (My Euroarms '53 Enfield has a beautiful piece of wood for a stock,however)
Speaking of Enfields, The Armisport version is a bit closer to the look of an original that the Euroarms one-I had to change my barrel bands and lockplate,among other things,to get a more authentic look.