I dont know if theres a picatinny rail made for the Encore or not, but you should be able to pick up the proper base for it at your local gun shop. Not sure why someone would need a picatinny rail on an Inline anyway, unless you just think it looks good on it.
T/C makes several good quality sope ring models to choose from. As far as scopes go...a good 3-9 x 40mm scope by Nikon, Burris, Leupold would do nicely. I have a buddy that uses Bushnell scopes and has never had a problem with them. I try to buy the best quality scope I can afford...I like Nikon scopes. My Omega wears a 3-9 x 40 mm Nikon and I love the scope, nice and clear.
As far as see thru rings go...thats completely up to you. Personally I dont like them because they put the scope too high off the barrel causing you to have to raise your head higher and not getting a good cheek to stock weld when aiming.