I am also on the quest with the T206 set,with only close to 50 cards-so I still have a long way to go.I am all over the board with it,collecting commons',HOF'ers,semi-hard backs,etc.
I have found that collecting even in a VG-VG/EX range graded SGC,PSA,BVG makes the quest a little pricey,but don't mind-it'll just take me a little longer.
For some reason I don't want the real low grade beaters in my set (if I can help it)-I'm talking the cards with lots of creases,paper loss,mangled,etc..
I wish you all the best on "taming the Monster"
Sincerely,Clayton