Most folks will probably tell you to get DX, but I'm a rare exception. Dx will beat in quickly and in my view especially someone who's new to the game you're gonna hit a lot of stuff that isn't a basket. And that DX will quickly be quite different from when you started. I've had Leopards in DX
Star & Champion
While it might cost a bit more for the better plastic, it'll stay truer to the flight path you are looking for a lot longer.
You can get discs locally from several places. There's a outdoorsy kind of store on Ellicott Creek RD. right across from Ellicott Creek Park. Pretty handy since Ellicott Creek is a pretty beginner friendly course. Stuart's in Lewiston (not far from JD) carries Innova. I've heard of place in Hamburg that sells discs too. There are several locals who sell out of the back of their cars. But far and away the best place locally to buy plastic and everything else you need is at Discology 101 in Eden. The proprietors of Discology, Doug & Mary Opiela, have 35+ years of discin experience between them and they can help you with anything from plastic to advice. And he has a course on site too!
And although I tout light discs, I agree that you should stick with a heavier putter.
Although I haven't actually played Pinewoods myself, from what I've seen of the park, Veteran's is a much better bet.