If I might suggest... avoid the Italian Springfield repops unless you are going to splurge and go for a Pedersoli... even that isn't quite the best bet.
Invest in a James River Armory US Model 1861... it cost quite a bit more but it is a true reproduction that looks & feels like an original.
Your next best bet is the Springfield by Miroku available through Dixie Item # PK0431. It eliminates all the misfire issues common w/ the Italian made repros, is the right weight and feel... I've had one for most of four years now and it's a wonderful weapon.
IIRC Lodgewood consignment page has several reasonably priced used repros & a number of originals that are skirmish or re-enactor ready. They have a Navy Arms Miroku M1863 for under $400 IIRC.
http://www.lodgewood.com/
Good Luck