Most ESB characters are available with the logo. You'll have the choice of 30a, 30b, 41, 45a. I think it's only Zuckuss that you won't be able ot get because as far as we know it never existed.
ESB Palitoy logo characters are notoriously tough but they are all out there on at least one of those cardback variations.
But they are going to be expensive, even in not so great condition.
Really tough ones will be
Fett (30, 41 or 45a you could be looking anywhere from 1k up. Offers of 5k on a 30 back have been made)
WBG
CCP
Bossk, Fx7 and IG88 can be tricky though tend to be harder on some cardbacks than others.
C3P0 removeable limbs, Luke Hoth and Dengar have also been really hard for people to find.
I'm sure other collectors can tell other ones that have proven a nightmare to find.