てもらえるとありがたい => grateful, thankful if... N4
Emphasize
~にたえる (耐える)    => bear doing ~ N1
の[末「すえ」]/た[末「すえ」] => conclusion N2
Reason, Result, Response
さえ...たら => Just...is enough N3
Conditions (sufficient conditions)
~んがため(に)/~んがための      => in order to ~ N1
にこたえ(て) => in response to ~ N2
ただでさえ => ordinary; usual... also... N2
Description
がみえる => to look; to seem; to appear N3
Description
ひとつまちがえば => Just (negligence) N3
Ability
たまえ => do~; order somebody to do something N2
Order
たいがい => in general N2
Repetition, habit
たとえ~ても => even if… is the case N3