Mehul Kamdar : In my collection, I have an 8mm conversion of the Vergueiro. I agree with bigger_is_best. The sights are very good for a military Mauser rifle. Much like the Swedish Mausers, but maybe better. Mine is a little stiff in the opening of the action, but smooth. It shoots good ammo very well. I just haven't been able to part with it or alter it in any way. The military stock is slim and light. Sporterizing would not improve the function, only the look.
I say buy it if the numbers match and the headspace is good.