I would have suggested a reproduction Enfield 1858 if I'd found this post in time.
But if you're happy with what you got, that's all that matters.
I'd choose the 1858 Enfield for a number of reasons:
1. Original and authentic rifling is 1:48 inch, instead of the 1:72" of the 1853. This helps to better stabilize the Minie' bullet.
This said, some Italian-made 1853s have the 1:48 rifling. They're very long rifles, and I've always found them cumbersome. The 1858 with its 33" barrel is about my personal limit on barrel length.
2. The Parker Hale 1858 is the premium edition of this model. Parker Hale borrowed from the Tower of London the original gauges used to make this model (and other Enfields) and made a copy so close to the original that it's nearly a clone.
They even copied the progressive depth rifling, that "chokes down" from breech to muzzle.
A Minie' bullet, when fired, will have its hollowbased skirt spread out by pressure. As it moves down the barrel, in progressive depth rifling, the bore gets tighter and tighter.
This grips the bullet firmly.
Competitive target shooters in England shoot their original and Parker Hale 1853s and 1858s out to 600 to 800 yards, obtaining groups no wider than a man.
Alas, Parker Hale stopped producing these Enfield copies in 1990, and later went out of business.
The Italians bought the surplus barrels and made Enfields with progressive depth rifling for a time.
Italian Enfields made for some time may have the 1:48 twist of the Enfield, but not the progressive depth rifling.
The Parker Hale Enfields made from 1972 to 1990 bring premium prices. One in excellent condition can bring $1,400, depending on the model.
The 1858 Parker Hale Enfield is considered by British long-range shooters as the most accurate Enfield copy ever made.
3. The 1858 and 1853 Enfields, made in Italy or by Parker Hale of England, have better sights than the Springfields. The flip-up ladder rear sight is graduated for 800 to 1,000 yards.
The Springfield's flip-up leaves go out to 300 yards. I've never cared for them as they are cruder than the Enfield's.
The Enfield seems handier to me, and better balanced, than the Springfield. But this is a personal choice. You may feel the opposite.
But sounds like you got a good buy. Good way to get introduced to .58 caliber. Have fun!