だけしか~ない => only N3
だけしか => Only A can B , Nothing except N3
Not only, Not even
...かける => Impact N3
Act
しかし => But, nevertheless N5
Change the subject of the story
から~にかけて => through; from [A] to [B] N2
かけの/かけだ => B in the middle of A; half-A B N3
Time, Situation
けっか => as a result of; after ~ N3
Result
もしかすると/もしかしたら~かもしれない => perhaps; maybe; perchance; by any chance ~ N3
しかしながら => however, nevertheless N2
Things do not match the prediction
[決「けっ」]して~ない => Won’t, isn’t N3
Will, Decision, Doing
もしかしたら…か => perhaps; maybe; perchance; by any chance ~ N4
Speculation
にかけたら => Particularly in terms of... N2
Position, perspective