~あたかも => just like N1
Similarity
にあたり/にあたって => at the time; on the occasion of ~ N2
のであった => So...(Exclamation) N2
Exclamatory
あらためる => to revise; to replace N3
Happens next
といいなあ/たらいいなあ/ばいいなあ => it would be nice if; should; I hope ~ N3
にあたる  => relating to ~, to do with ~, that is ~ N2
Proportional, parallel
にあたって/にあたり => At the time of A (which starts now).., on the occasion of A N2
Time, Situation
ていただけるとありがたい => I would really appreciate it if ... N3
Exclamatory
ひとつには…ためである => Partly because of ... N3
Cause, reason
たことがある => to have done something before; used to N5
たことがある => Have done A before N4
Situations and Experiences
じゃありませんでした => was not, were not N5
Emphasize negative meaning