Welcome to the club Ayab and Almir!
Epic basses are really fantastic and can make your day each and every gig without causing undue stress by fear of damage or dismay such as a top-end expensive boutique bass might. Any good quality long scale string should work, but to be sure, measure all the strings before tensioning. You can always bring back a new set of strings to swap for a new set of strings, but as soon as it is tensioned, it is non-returnable unless it is dead straight from the package - another issue entirely. To tell the scale length, measure from the inside edge of the nut (fretboard side) to the twelvth fret and double the measurement: A 34 scale will measure 17, a 35 scale will measure 17 1/2. I use the Alembic string on my fretless 5 with great success - a pressure-wound round wound nickel string that feels smooth to the touch and fingerboard, and sounds delightfully full. As for cases, go to a music store with your Epic, and try the fit of cases in stock. Be prepared to prove ownership at the door first! You don't want to walk in the store with your bass and not be able to walk out with it! I got a Coffin case which was slimmer than an SKB - if portability is a concern, and the looks are real Goth too! Under $100.00 USD too. Here is a link to my showcase:
http://club.alembic.com/Images/411/29399.html?1159930575 And if you have not heard already:
Post Pics! Post Pics! Post Pics!
Enjoy!
Kris