As long as you can translate the subject and object, the rest isn't that hard.
Literal
Subject/object [even-さえ] can-translate-[conditional-ば] rest [topic-は] that-much difficult not [copula-です].
主体・客体 'subject and object' — here used as translation terms. ~さえ…ば 'as long as, if only' is a minimum-condition pattern. そこまで…ない 'not that much' — そこまで sets a limit on the degree. Practical study advice.