If it wasn't for work, I probably never would have come to a place like this.
If it wasn't for my job, I don't think I would have ever thought of coming here.
I don't think I'd have ended up here for any other reason.
言い方は色々あります。
① If it wasn't for work, I probably never would have come to a place like this.
仕事でなければ、私は多分こんなところに来なかっただろうね。
② If it wasn't for my job, I don't think I would have ever thought of coming here.
仕事でなければ、私はここに来ることを思いつかなかっただろうね。
③ I don't think I'd have ended up here for any other reason.
（仕事以外に）他の理由で、ここに来ることにならなかっただろうね。
説明：
①と②は「If it wasn't for〜」というパターンを使っています。これは「〜でなければ」という意味です。③は「for any other reason」（他の理由で）＋否定形を使って同じような意味になります。
「〜しなかっただろうね」は「I don't think I would have (ever)〜」や「I probably never would have」で表現できます。
①の「come to a place like this」は「こんなところに来ること」です。②の「thought of coming here」は「ここに来るのを考えたこと」です。
I wouldn't think to come to a place like this unless it were work related.
I couldn't imagine coming somewhere like this for any reason other than work.
1) I wouldn't think to come to a place like this unless it were work related.
「仕事じゃなかったらこのような場所には来用途は思いつかなかったよね。」というニュアンスです。
wouldn't think to come を使って表現してみました。
2) I couldn't imagine coming somewhere like this for any reason other than work.
「仕事以外の理由で、このような場所に来ようとは思わなかっただろうな。」
couldn't imagine coming を使って表現した言い方です。
ご参考になれば幸いです！
アメリカ合衆国 
日本 
