[折「おり」]には => When A, at the time A N2
Time, Situation
折には => when the chance to 〜 comes N2
~みだりに => recklessly; indiscriminately; arbitrarily N1
Ban
ひとり ... のみならず => not only…, not just… N2
Add
~みこみだ => ~Expected N1
Determined, determined
~みこみちがい / みこみはずれ> => ~Contrary to expectations N1
Beyond expectations
み => ~ness N3
[極「きわ」]み/[極「きわ」]まりない => Extremely A N1
Degree/ Level/Amount
~みこみがたつ => have a good prospect N1
Expected
とみえて/とみえる => It seems that ~ N1
... はずみ.... => So N2
Result
~みこみがある => There is hope, there is prospect. N1