Scott ARC Series
You have a rod that has a very loyal following. But, as you are new to spey casting, you have to give it time and work hard to learn the basics before, 1) you judge the rod, or 2) expect to bomb out long, straight cast with tight loops. Lessons are the best way to start. Find an experienced spey caster and learn everything you can from them.
As to lines, I think the Airflo Rage line is a good starter line. It lets you get used to the rod, develop your technique, and is forgiving enough to allow you some initial successes. I suggest the 510 grain line. Ultimately you will likely throw a lighter line, but the heavier one helps the learning curve.
I'm almost two years into this game and I'm headed back to another clave in a couple of weeks to get some more instruction. Good luck, and eventually, tight lines!