I think you need to get some of the big cards authenticated before you agree with the seller. As others have noted, some of them look really bad. I don't see a Willard's Chocolate Ruth, but there is a Babe Ruth Candy Ruth, which looks like a bad reprint. The 33 Goudey Ruth looks very...
I would go with T206. IMHO, it's a better, more popular set, with better player images. Then you have the neat back variations that you can play with also. (I know that T205 also has those back variations, but they just look more distinct on T206.)